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Publication numberUSD238258 S
Publication typeGrant
Publication dateDec 30, 1975
Filing dateOct 4, 1974
Publication numberUS D238258 S, US D238258S, US-S-D238258, USD238258 S, USD238258S
InventorsRudolph M. Duris
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Audible vehicle back-up alarm
US D238258 S
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

United States Patent 'fff; 31

AUDIBLE VEHICLE BACK-UP ALARM Rudolph M. Duris, Norwalk, C0nn., assignor to General Signal Corporation Filed Oct. 4, 1974, Ser. No. 511,962

Term of patent 14 years Int. Cl. DID-06 US. Cl. Dl0-1l6 FIGv 2 Des. 238,258 Page 2 of 2 FIG, 5

References Cited UNITED STATES PATENTS 2,240,378 4/1941 Rittenhouse.

3,076,960 2/1963 Knutson 340--392 3,728,676 4/1973 Brown 340-484 E FOREIGN PATENTS 481,469 2/1927 Germany 340-388 SUSIE J. MERCER, Primary Examiner