Evaporative cooler

Apr 3, 1981

Referenced Cited

U.S. Patent Documents

D213695	April 1969	Soroos
D227986	July 1973	Schaffer
D244294	May 10, 1977	Glasoe
D256388	August 12, 1980	Harrell
D258757	March 31, 1981	Jordan
D259206	May 12, 1981	Parren
3742659	July 1973	Drew
4026971	May 31, 1977	Glasoe
4043777	August 23, 1977	Parren
4132087	January 2, 1979	Goettl

Patent History

Patent number: D270661
Type: Grant
Filed: Apr 3, 1981
Date of Patent: Sep 20, 1983
Inventor: Julian K. Pettengill (Phoenix, AZ)
Primary Examiner: James R. Largen
Attorney, Agent or Law Firm: Don J. Flickinger
Application Number: 6/250,832

Classifications

Current U.S. Class: D23/139
International Classification: D2304;