EP0139796A1 - Improved tubular lock - Google Patents

Improved tubular lock Download PDF

Info

Publication number
EP0139796A1
EP0139796A1 EP83306515A EP83306515A EP0139796A1 EP 0139796 A1 EP0139796 A1 EP 0139796A1 EP 83306515 A EP83306515 A EP 83306515A EP 83306515 A EP83306515 A EP 83306515A EP 0139796 A1 EP0139796 A1 EP 0139796A1
Authority
EP
European Patent Office
Prior art keywords
pin
tumblers
plug
pick
lower pin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP83306515A
Other languages
German (de)
French (fr)
Other versions
EP0139796B1 (en
Inventor
Shih-Ming Hwang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE8383306515T priority Critical patent/DE3375418D1/en
Priority to EP19830306515 priority patent/EP0139796B1/en
Publication of EP0139796A1 publication Critical patent/EP0139796A1/en
Application granted granted Critical
Publication of EP0139796B1 publication Critical patent/EP0139796B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/02Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in operated by the edge of the key
    • E05B27/08Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in operated by the edge of the key arranged axially
    • E05B27/083Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in operated by the edge of the key arranged axially of the split-pin tumbler type

Definitions

  • a correct key J is inserted into the known lock to lower the upper pin-tumblers C which in turn press down the lower pin-tumblers H to the correct height so as to enable the upper plug A to turn, thus allowing the upper plug A to revolve and release the bolt B.
  • Fig. 14, Fig. 15 and Fig. 16 and 17 illustrate the use of the pick tools; first, insert each pin R of the pick as shown in Fig. 17 into each upper pin hole D to lower the upper pin-tumblers C, which in turn push the lower pin-tumblers H to the bottom of the lower pin holes D. Then, turn the pick tool clockwise and counterclockwise alternately, thereby slightly rotating the upper plug A clockwise and counterclockwise al ternately.
  • the reason why the upper plug A can slightly be rotated clockwise and counter clockwise is that the diameter of the upper pin-tumbler C must be smaller than that of the upper pin hole D.
  • the lower pin-tumblers H Since the lower pin-tumblers H are spring loaded, they will go upwards until their tops are in contact with the bottom surface of the upper plug A while the upper plug A is slightly rotated clockwise and counterclockwise, i.e. the lower pin-tumblers H are lifted to the correct height. Thus the upper plug A is allowed to revolve and .the bolt B is released.
  • Fig. 18 illustrates the use of the pick tool shown in Fig. 9 to pick the known lock.
  • the pick tool shown in Fig. 9 slightly insert the pick tool shown in Fig. 9 into the upper plug A, and at the same time turn it clockwise and counterclockwise alternately.
  • the upper plug A is rotated clockwise and counterclociwise alternately.
  • the lower pin-tumblers H will go downward until their tops are in contact with the bottom surface of the upper plug A while the upper plug A is being slightly rotated clockwise and counterclockwise, i.e. the lower pin-tumblers H are lowered to the correct height.
  • the upper plug A is allowed to revolve and the bolt B is released.
  • the known tubular lock is easy to pick and should be improved.
  • the present invention relates to a tubular lock, and more particularly to one comprising a number of lower pin-tumblers having flanges in association with the same number of lower pin holes provided with recesses, making the lock very difficult to pick and offering a high degree of security under ordinary circumstances.
  • the object of the present invention is to provide an improved tubular lock which is difficult to pick and to offer a high degree of security under ordinary circumstances.
  • FIG. 1 and Fig. 2 there is shown the present invention comprising a housing 200 in which a plurality of upper pin-tumblers 3.
  • a bolt 20, an upper plug 2, a plurality of lower pin-tumblers 1, a plurality of springs 6, and a lower plug 4 are mounted.
  • Each upper pin-tumbler 3 has length different from the others, and the same is true to the lower pin-tumblers.
  • the upper pin-tumblers 3 are inserted into upper pin holes 21 of the upper plug 2.
  • the upper plug 2 is fixed to the bolt 20.
  • Each lower pin-tumbler 1 is provided with two flanges 11.
  • the lower pin-tumblers 1 together with the springs 6 are inserted into lower pin holes 41 of the lower plug 4.
  • the number of the upper pin-tumblers 3 is equal to the number of the lower pin-tumblers 1 and is also equal to the number of the springs 6.
  • the bolt 20 extends through the upper plug 2, the lower plug 4, a blocking plate 50 and a locking plate 60, and is screwed into a nut 70.
  • Each lower pin-tumbler 1 is aligned with each upper pin-tumbler 3 and extends from the lower plug 4 into each upper pin hole 21.
  • the combination of the upper plug 2, the bolt 2, and the lower plug 4 are installed into the housing 200 and fixed by means of inserting a pin 80 into the lower plug 4.
  • the pin-tumbler are spring-loaded so that they are always in the locking position except when the proper key is inserted.
  • each recess 411 is shown at the upper part of each pin hole 41 of the lower plug 4.
  • the depth of each recess 411 is different from the others.
  • a proper key 5 being inserted into the lock according to the preferred embodiment of the present invention to lower the upper pin-tumblers 3 which in turn press down the lower pin-tumblers 1 to the correct height so as to allow the upper plug 2 to revolve and release the bolt 20.
  • Fig. 6 there is shown the height of the flange 11 being A, then the depth of the recess 411 is A + 0.1A, and the length of the upper end 12 is 2A; let the depth of the lower pin hole 41 be B, then the diameter of the recess 411 is 1.2B.
  • Fig. 7 shows why it is impossible to use the pick tool shown in Fig. 17 to pick the lock according to the present invention.
  • Each pin R of the piew tool shown in Fig. 17 is inserted into each upper pin hole 21 to lower the upper pin-tumblers 3 which in turn push the lower pin-tumblers 41 to the bottom of the lower pin holes 41. Then , turn the pick tool clockwise and counterclockwise alternately, thereby slightly rotating the upper plug 2 clockwise and counterclockwise alternately.
  • the reason why the upper plug 2 can slightly be rotated clockwise and counterclockwise is that the diameter of the upper pin-tumbler 3 must be smaller than that of the upper pin hole 21.
  • the lower pin-tumblers 4 Since the lower pin-tumblers 4 are spring-loaded, they will go upwards until the flanges 11 are in contact with the bottom surface 22 of the upper plug 2 while the upper plug 2 is being slightly rotated clockwise and counterclockwise. As a result, the upper ends 12 of the lower pin-tumblers 1 will go into the pin holes 21 of the upper plug 2. In other words, the rotation of the upper plug 2 is prevented by the lower pin-tumblers 1, i.e. it is impossible to pick -the lock according to the present invention.
  • Fig. 8 shows why it is impossible to use another pick tool shown in Fig. 9 to pick the lock according to the present invention.
  • the pick tool shown in Fig. 9 is first slightly inserted into the upper plug 2, and at the same time is turned clockwise and counterclockwise alternately.
  • the upper plug 2 is slightly rotated clockwise and counter clockwise alternately.
  • the lower pin-tumblers 1 will go downward until the flange 11 of the lower pin-tumbler is in contact with the recess 411.
  • the rotation of the upper plug 2 is prevented by the upper ends 12 of the lower pin-tumblers 1, i.e. it is impossible to pick the lock according to the present invention.
  • each flange 11 may be different one another and the same is true to the recesses.

Abstract

Tubular lock, which comprises a number of lower pin-tumblers (1) provided with flanges (11) in association with the same number of lower pin holes (41), each with a recess (411) so as to make the lock very difficult to pick and to offer a high degree of security under ordinary circumstances.

Description

  • Most tubular locks in the market are easy to pick because of :
    • The known tubular lock as shown in Fig. 10 and Fig. 11 comprise s a housing 1 in which a plurali ty of upper pin-tumblers C, a bolt B, an upper plug D, a plurality of springs G, and a lower plug E are mounted. Each upper pin-tumbler C has a length different from the others; the same is tru to the lower pin-tumblers H. The upper pin-tumblers C are inserted into upper pin holes D of the upper plug A which is fixed to the bolt a. The lower pin-tumblers H together with the springs G are inserted into lower pin holes F of the lower plug E. The number of the upper pin-tumblers C is equal to the number of the lower pin-tumblers H and is also equal to the number of the springs G. The bolt B extends through the upper plug A, the lower plug E, a blocking plate K and is screwed into a nut T. Each lower pin-tumbler H is aligned with each upper pin-tumbler C and extends from the lower plug E into each upper pin hole D. The combination of the upper plug A, the bolt B and the lower plug E are installed into the housing 1 and fixed by means of a pin (Y) inserted into the lower plug E. The pin-tumblers are spring-loaded so that they are always in the locking position except when the proper key is inserted.
  • As shown in Fig. 12, a correct key J is inserted into the known lock to lower the upper pin-tumblers C which in turn press down the lower pin-tumblers H to the correct height so as to enable the upper plug A to turn, thus allowing the upper plug A to revolve and release the bolt B.
  • Fig. 14, Fig. 15 and Fig. 16 and 17 illustrate the use of the pick tools; first, insert each pin R of the pick as shown in Fig. 17 into each upper pin hole D to lower the upper pin-tumblers C, which in turn push the lower pin-tumblers H to the bottom of the lower pin holes D. Then, turn the pick tool clockwise and counterclockwise alternately, thereby slightly rotating the upper plug A clockwise and counterclockwise al ternately. The reason why the upper plug A can slightly be rotated clockwise and counter clockwise is that the diameter of the upper pin-tumbler C must be smaller than that of the upper pin hole D. Since the lower pin-tumblers H are spring loaded, they will go upwards until their tops are in contact with the bottom surface of the upper plug A while the upper plug A is slightly rotated clockwise and counterclockwise, i.e. the lower pin-tumblers H are lifted to the correct height. Thus the upper plug A is allowed to revolve and .the bolt B is released.
  • Fig. 18, illustrates the use of the pick tool shown in Fig. 9 to pick the known lock. First, slightly insert the pick tool shown in Fig. 9 into the upper plug A, and at the same time turn it clockwise and counterclockwise alternately. Thus the upper plug A is rotated clockwise and counterclociwise alternately. In consequence, the lower pin-tumblers H will go downward until their tops are in contact with the bottom surface of the upper plug A while the upper plug A is being slightly rotated clockwise and counterclockwise, i.e. the lower pin-tumblers H are lowered to the correct height. Thus the upper plug A is allowed to revolve and the bolt B is released.
  • As stated, the known tubular lock is easy to pick and should be improved.
  • The present invention relates to a tubular lock, and more particularly to one comprising a number of lower pin-tumblers having flanges in association with the same number of lower pin holes provided with recesses, making the lock very difficult to pick and offering a high degree of security under ordinary circumstances.
  • The object of the present invention is to provide an improved tubular lock which is difficult to pick and to offer a high degree of security under ordinary circumstances.
  • The other objects of the present invention may be gained by following the detailed description and the drawings attached.
    • Fig. 1 is a perspective and exploded view of a preferred embodiment of the present invention.
    • Fig. 2 is a sectional view of the preferred embodiment of the present invention.
    • Fig. 3 is an enlarged perspective and fragmentary view; of the lower plug shown in Fig. 1.
    • Fig. 4 is a sectional view of the present invention showing proper key being inserted into the tubular lock according to the preferred embodiment of the present invention.
    • Fig. 5 is an end-view of Fig. 4.
    • Fig. 6 shows the sizes of the lower pin-tumbler and the lower pin hole.
    • Fig. 7 is a sectional view showing why it is impossible to use the pick tool shown in Fig. 17 to pick the lock constructed according to the present invention.
    • Fig. 8 is a sectional view showing the failure of of another picking method.
    • Fig. 9 is a perspective view of a pick tool.
    • Fig. 10 is a perspective and exploded view of a known tubular lock.
    • Fig. 11 is a sectional view of the known tubular lock shown in Fig. 10.
    • Fig. 12 is a sectional view showing that the correct key has been inserted into the known tubular lock.
    • Fig. 13 is an end view of Fig. 12.
    • Fig. 14 shows how to pick a known lock.
    • Fig. 14, Fig. 15 and Fig. 16 show how to use the pick tool shown in Fig. 17 to pick a known lock.
    • Fig. 17 is a perspective and exploded view of another pick tool;
    • Fig. 18 shows how to use the pick tool shown in Fig. 9 to pick a known lock.
  • Referring to Fig. 1 and Fig. 2, there is shown the present invention comprising a housing 200 in which a plurality of upper pin-tumblers 3. A bolt 20, an upper plug 2, a plurality of lower pin-tumblers 1, a plurality of springs 6, and a lower plug 4 are mounted. Each upper pin-tumbler 3 has length different from the others, and the same is true to the lower pin-tumblers. The upper pin-tumblers 3 are inserted into upper pin holes 21 of the upper plug 2. The upper plug 2 is fixed to the bolt 20. Each lower pin-tumbler 1 is provided with two flanges 11. The lower pin-tumblers 1 together with the springs 6 are inserted into lower pin holes 41 of the lower plug 4. The number of the upper pin-tumblers 3 is equal to the number of the lower pin-tumblers 1 and is also equal to the number of the springs 6. The bolt 20 extends through the upper plug 2, the lower plug 4, a blocking plate 50 and a locking plate 60, and is screwed into a nut 70. Each lower pin-tumbler 1 is aligned with each upper pin-tumbler 3 and extends from the lower plug 4 into each upper pin hole 21. The combination of the upper plug 2, the bolt 2, and the lower plug 4 are installed into the housing 200 and fixed by means of inserting a pin 80 into the lower plug 4. The pin-tumbler are spring-loaded so that they are always in the locking position except when the proper key is inserted.
  • Referring to Fig. 3, there is shown a recess 411 at the upper part of each pin hole 41 of the lower plug 4. The depth of each recess 411 is different from the others.
  • Referring to Fig. 4, there is shown a proper key 5 being inserted into the lock according to the preferred embodiment of the present invention to lower the upper pin-tumblers 3 which in turn press down the lower pin-tumblers 1 to the correct height so as to allow the upper plug 2 to revolve and release the bolt 20.
  • Referring to Fig. 6, there is shown the height of the flange 11 being A, then the depth of the recess 411 is A + 0.1A, and the length of the upper end 12 is 2A; let the depth of the lower pin hole 41 be B, then the diameter of the recess 411 is 1.2B.
  • Fig. 7 shows why it is impossible to use the pick tool shown in Fig. 17 to pick the lock according to the present invention. Each pin R of the piew tool shown in Fig. 17 is inserted into each upper pin hole 21 to lower the upper pin-tumblers 3 which in turn push the lower pin-tumblers 41 to the bottom of the lower pin holes 41. Then , turn the pick tool clockwise and counterclockwise alternately, thereby slightly rotating the upper plug 2 clockwise and counterclockwise alternately. The reason why the upper plug 2 can slightly be rotated clockwise and counterclockwise is that the diameter of the upper pin-tumbler 3 must be smaller than that of the upper pin hole 21. Since the lower pin-tumblers 4 are spring-loaded, they will go upwards until the flanges 11 are in contact with the bottom surface 22 of the upper plug 2 while the upper plug 2 is being slightly rotated clockwise and counterclockwise. As a result, the upper ends 12 of the lower pin-tumblers 1 will go into the pin holes 21 of the upper plug 2. In other words, the rotation of the upper plug 2 is prevented by the lower pin-tumblers 1, i.e. it is impossible to pick -the lock according to the present invention.
  • Fig. 8 shows why it is impossible to use another pick tool shown in Fig. 9 to pick the lock according to the present invention. The pick tool shown in Fig. 9 is first slightly inserted into the upper plug 2, and at the same time is turned clockwise and counterclockwise alternately. Thus the upper plug 2 is slightly rotated clockwise and counter clockwise alternately. In consequence, the lower pin-tumblers 1 will go downward until the flange 11 of the lower pin-tumbler is in contact with the recess 411. In ther words, the rotation of the upper plug 2 is prevented by the upper ends 12 of the lower pin-tumblers 1, i.e. it is impossible to pick the lock according to the present invention. Nevertheless, once the flange 11 at the upper part of the lower pin-tumbler 1 goes into the lower pin hole 41. The upper pin-tumblers 1 will go into the recess 411 too, so that the rotation of the upper plug 2 is prevented by the upper pin-tumblers 1.
  • Consequently, it is impossible to pick the lock according to the present invention no matter what kind of picking method is used.
  • In order to increase the safety of the present invention, the height of each flange 11 may be different one another and the same is true to the recesses.
  • The invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiment is therefore considered in all respects as illustrative and not restrictive, the scope of the invention is indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalent of the claims are therefore deemed to be embraced therein.

Claims (1)

1. An improved lock comprising:
a housing;
a bolt;
an upper plug having a plurality of upper pin holes and being fixed on said bolt;
a lower plug having a plurality of lower pin holes;
a plurality of lower pin-tumblers each of is provided with two flanges and is inserted into said lower pin holes;
a plurality of springs inserted into said lower pin holes and being used to lift the lover pin-tumblers to the locking position.
EP19830306515 1983-10-26 1983-10-26 Improved tubular lock Expired EP0139796B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8383306515T DE3375418D1 (en) 1983-10-26 1983-10-26 Improved tubular lock
EP19830306515 EP0139796B1 (en) 1983-10-26 1983-10-26 Improved tubular lock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19830306515 EP0139796B1 (en) 1983-10-26 1983-10-26 Improved tubular lock

Publications (2)

Publication Number Publication Date
EP0139796A1 true EP0139796A1 (en) 1985-05-08
EP0139796B1 EP0139796B1 (en) 1988-01-20

Family

ID=8191327

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830306515 Expired EP0139796B1 (en) 1983-10-26 1983-10-26 Improved tubular lock

Country Status (2)

Country Link
EP (1) EP0139796B1 (en)
DE (1) DE3375418D1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4683739A (en) * 1986-07-21 1987-08-04 Hughes Donald R Key operated lock
EP0325634A1 (en) * 1987-07-07 1989-08-02 Fort Lock Corporation High security pin tumbler lock
EP0556505A2 (en) * 1991-12-20 1993-08-25 Lu, Den-Yi Axial pin tumbler lock
EP0964120A1 (en) * 1998-06-08 1999-12-15 SERRATURE MERONI S.p.A. A tubular lock
GB2375371A (en) * 2001-05-10 2002-11-13 Trojan Hardware & Designs Ltd Key and lock arrangement
GB2512274A (en) * 2013-02-08 2014-10-01 William Frederick Crosbie Rotational pin lock

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1876907U (en) * 1963-06-06 1963-08-01 Karrenberg Fa Wilhelm LOCK CYLINDER.
GB940428A (en) * 1958-12-19 1963-10-30 Lowe & Fletcher Ltd Improvements relating to locks

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB940428A (en) * 1958-12-19 1963-10-30 Lowe & Fletcher Ltd Improvements relating to locks
DE1876907U (en) * 1963-06-06 1963-08-01 Karrenberg Fa Wilhelm LOCK CYLINDER.

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4683739A (en) * 1986-07-21 1987-08-04 Hughes Donald R Key operated lock
EP0325634A1 (en) * 1987-07-07 1989-08-02 Fort Lock Corporation High security pin tumbler lock
EP0325634A4 (en) * 1987-07-07 1990-10-24 Fort Lock Corporation High security pin tumbler lock
EP0556505A2 (en) * 1991-12-20 1993-08-25 Lu, Den-Yi Axial pin tumbler lock
EP0556505A3 (en) * 1991-12-20 1993-11-03 Chang Jie Ind Co Ltd Axial pin tumbler lock
EP0964120A1 (en) * 1998-06-08 1999-12-15 SERRATURE MERONI S.p.A. A tubular lock
GB2375371A (en) * 2001-05-10 2002-11-13 Trojan Hardware & Designs Ltd Key and lock arrangement
GB2375371B (en) * 2001-05-10 2004-06-16 Trojan Hardware & Designs Ltd Window handle arrangement
GB2512274A (en) * 2013-02-08 2014-10-01 William Frederick Crosbie Rotational pin lock

Also Published As

Publication number Publication date
DE3375418D1 (en) 1988-02-25
EP0139796B1 (en) 1988-01-20

Similar Documents

Publication Publication Date Title
US6910356B2 (en) Anti-pick mogul cylinder
US4015458A (en) Wafer type tumbler lock construction having individual side bar tumbler inhibiting means
US6425274B1 (en) Rekeyable padlock with a lock cylinder having an enlarged viewing slot
US5899099A (en) Combination lock
EP0147377B1 (en) A cylinder lock
US4723427A (en) Symmetrical side bar lock and key therefor
US4478061A (en) Cylinder lock
US4377940A (en) Impression-resistant lock
US5079936A (en) High security cylinder lock
US4235086A (en) Pin tumbler lock
US4770014A (en) Lock
EP0139796A1 (en) Improved tubular lock
US4416129A (en) Cylinder lock with key removable plug
EP0110647A1 (en) Improvements in or relating to cylinder locks
JPH02283911A (en) Wood screw with burglar preventing head
US4195503A (en) Rotary disc-tumbler lock cylinder
US20030136164A1 (en) Lock device with removable core
US4450699A (en) Pin tumbler lock
US4454735A (en) Screw lock
EP0065813B1 (en) Cylinder lock
US4151731A (en) Pick resistant cylinder lock
US3045468A (en) Pick resistant lock cylinder
US3541822A (en) Pickproof locks
GB2194827A (en) Driving formations of screws
GB2141480A (en) Cylinder lock

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

RBV Designated contracting states (corrected)

Designated state(s): DE FR IT

17P Request for examination filed

Effective date: 19851107

17Q First examination report despatched

Effective date: 19860714

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR IT

ITF It: translation for a ep patent filed

Owner name: JACOBACCI & PERANI S.P.A.

REF Corresponds to:

Ref document number: 3375418

Country of ref document: DE

Date of ref document: 19880225

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19900928

Year of fee payment: 8

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19901227

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19920630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19920701

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST