USD232355S - Covered test tube - Google Patents

Description

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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