Ventilator

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Information

Patent Grant
D270276

References
Source

Patent Number
D270,276
Date Filed
Friday, January 23, 1981
45 years ago
Date Issued
Tuesday, August 23, 1983
42 years ago

Inventors
- Derek V. Stern
- Noel W. Fleury
Original Assignees
- Flettner Ventilator Limited
Examiners
- Largen; James R.
Agents
- Birch, Stewart, Kolasch & Birch

US Classifications
- D23 - Environmental heating and cooling
- 098
Field of Search
- US
- D23 139-154
- 098 214
- 098 19
- 098 21
- 098 42 R
- 098 43 C
- 098 43 R
- 098 69
- 098 72
- 098 75
International Classifications
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a ventilator, as shown and described.

Priority Claims (1)

Number	Date	Country	Kind
80995883	Jul 1980	GBX

US Referenced Citations (4)

Number	Name	Date	Kind
D204518	Jenn	Apr 1966
D217721	Guerney	Jun 1970
1416295	Hirschman	May 1922
2469096	Wilson	May 1949

Foreign Referenced Citations (1)

Number	Date	Country
90671	Sep 1937	SEX