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Publication numberUSD233265 S
Publication typeGrant
Publication dateOct 15, 1974
Filing dateNov 17, 1972
Publication numberUS D233265 S, US D233265S, US-S-D233265, USD233265 S, USD233265S
InventorsDavid L. Walchle
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Myringotomy knife
US D233265 S
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Patented Oct. 15, 1974 7 MYRINGOTOMY KNIFE David L. Walchle, Cincinnati, Ohio, assignor to Xomox Corporation, Cincinnati, Ohio Filed Nov. 17, 1972, Ser. No. 307,582 Term of patent 14 years Int. Cl. D24--02 US. Cl. D8312 R FIG-7 FIG. 1 is a perspective view of a myringotomy knife References Cited ifg g g fith f 1 UNITED STATES PATENTS isasi epan view ereo FIG, 3 i a, plan view of the other side of FIG. 2. 186,108 9/1959 Takac D8 98 FIG 4 is a top plan i f FIG 3 224,672 3/1972 Geracl D8312 A PIG Sis a bottom plan view of FIG. 3. 3,367,335 2/1968 Ward et 128-305 3,530,860 9/1970 Majoros 128-305 H1261. 6 Is an end elevauonal iew of the left end of 3,706,106 12 (1972 Leopoldi l28 305 FIG. 7 is an end elevational view of the right end of OTHER REFERENCES FIG. Aloe Instrument Catalog, No. 220, 1965, p. 80, item No. c3195, ear knife. The ornamental design for a myringotomy knife, as shown and described. BERNARD ANSHER, Primary Examiner CERTIFICATE OF CORRECTION UNITED STATES PATENT OFFICE Patent No. Des NO 233 265 Dated October 5 1974 Invent0r(S) David L. Walchle It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Cancel the original copy and substituting in its place the corrected copy.

Signed and sealed this 31st day of December 1974.

(SEAL) Attest:

McCOY 1-2. GIBSON JR. C. MARSHALL DANN Attesting Qfficer Commissioner. of Patents I FORM PO-1OSO (IO-69) USCOMM DC 37 p us, covnnnzur murmur, orncc B69. 930

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US7072704Feb 5, 2002Jul 4, 2006St. Louis UniversitySystem for indicating the position of a surgical probe within a head on an image of the head