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Publication numberUSD232355 S
Publication typeGrant
Publication dateAug 13, 1974
Filing dateMay 23, 1973
Publication numberUS D232355 S, US D232355S, US-S-D232355, USD232355 S, USD232355S
InventorsGerhard Wiedmann
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Covered test tube
US D232355 S
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Description  (OCR text may contain errors)

Patented Aug. 13, 1974 COVERED TEST TUBE Gerhard Wiedmann, Butzberg, Switzerland, assignor to Greiner Electronic AG, Langenthal, Switzerland Filed May 23, 1973 Ser. No. 363,243 Claims priority, application Switzerland Jan. 11, 1973 Term of patent 14 years Int. Cl. D24-02 US. Cl. D161 R Jilin-Id FIG. 1 is an exploded perspective view of a covered References Cited tube my design; UNITED STATES PATENTS FIG. 2 1s a side elevation thereof; FIG. 3 is a top plan view of the cover member; 11213392 2/1969 Arsfinault et a1 D16*1 R FIG. 4 is a bottom plan view thereof; and 3,107,805 10/1963 Asher 215 1 R FIG. 5 is a sectional view of the cover taken on line 3,508,653 4/1970 colemafl 233 26 X 5 5 f FIG 1 3,583,591 6/1971 Hayashlda D9281 I claim: OTHER REFERENCES ho lfv Ornamental design for a covered test tube as Fisher Modern Laboratory Appliances, Cat. No. 65, p. S 945, 1964, item No. 14-959, Tube With Cap.

BERNARD ANSHER, Primary Examiner

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US7392735Jan 29, 2004Jul 1, 2008Brasscorp LimitedManual liquid metering device and cartridge