Air circulator
Description
FIG. 1 is a side elevational view of an air circulator embodying our new design;
FIG. 2 is a top plan view thereof; and
FIG. 3 is a bottom plan view thereof.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
1170551 | February 1916 | Marty |
2528650 | November 1950 | Graham |
3173353 | March 1965 | Watkins |
3347025 | October 1967 | Wiley |
3750557 | August 1973 | Peill et al. |
3827342 | August 1974 | Hughes |
3973479 | August 10, 1976 | Whiteley |
4053732 | October 11, 1977 | Carter |
4064203 | December 20, 1977 | Cox |
4136606 | January 30, 1979 | Wolbrink |
4152973 | May 8, 1979 | Peterson |
2275734 | June 1974 | FRX |
2296818 | December 1974 | FRX |
Patent History
Patent number: D254803
Type: Grant
Filed: Nov 21, 1977
Date of Patent: Apr 22, 1980
Inventors: Douglas B. Rusth (Portland, OR), David A. Martin (Beaverton, OR)
Primary Examiner: James R. Largen
Attorney: James D. Givnan, Jr.
Application Number: 5/853,623
Type: Grant
Filed: Nov 21, 1977
Date of Patent: Apr 22, 1980
Inventors: Douglas B. Rusth (Portland, OR), David A. Martin (Beaverton, OR)
Primary Examiner: James R. Largen
Attorney: James D. Givnan, Jr.
Application Number: 5/853,623
Classifications
Current U.S. Class:
D23/151
International Classification: D2304;
International Classification: D2304;