Air impeller

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Information

Patent Grant
D246856

References
Source

Patent Number
D246,856
Date Filed
Monday, February 9, 1976
48 years ago
Date Issued
Tuesday, January 3, 1978
46 years ago

Inventors
- John F. O'Connor
Original Assignees
- Torin Corporation
Examiners
- Burke; Wallace R.
- Gandy; James M.
Agents
- Paulding; Theodore R.

US Classifications
- D23 - Environmental heating and cooling
Field of Search
- US
- D23 155
- D23 158
- D23 165
- 416 223
- 416 228
International Classifications
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for an air impeller, as shown.

US Referenced Citations (3)

Number	Name	Date	Kind
D157474	Faber	Feb 1950
1088883	Donath	Mar 1974
3367423	Van Ranst	Feb 1968