Electric vaporizer
Description
FIG. 1 is a perspective view of an electric vaporizer showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is an elevational view taken from the side opposite that shown in FIG. 1;
FIG. 4 is an elevational view taken from the end opposite that shown in FIG. 1; and
FIG. 5 is a bottom plan view thereof.
Referenced Cited
U.S. Patent Documents
| D159407 | July 1950 | Costello |
| D187269 | February 1960 | Carlson |
| D189420 | December 1960 | Diehl |
| D228287 | September 1973 | Costello |
| 2513919 | July 1950 | Costello |
| 2611068 | September 1956 | Wellens |
| 2691716 | October 1954 | Wellens |
| 2692327 | October 1954 | Avrigan, Jr. |
| 2931880 | April 1960 | Yaffe |
| 2942090 | June 1960 | Diehl |
Patent History
Patent number: D246986
Type: Grant
Filed: Nov 22, 1976
Date of Patent: Jan 17, 1978
Inventor: Hal F. Costello (Toledo, OH)
Primary Examiner: James R. Largen
Attorney: Malcolm W. Fraser
Application Number: 5/743,711
Type: Grant
Filed: Nov 22, 1976
Date of Patent: Jan 17, 1978
Inventor: Hal F. Costello (Toledo, OH)
Primary Examiner: James R. Largen
Attorney: Malcolm W. Fraser
Application Number: 5/743,711
Classifications
Current U.S. Class:
D23/148
International Classification: D2399;
International Classification: D2399;