Oxygen hood

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Information

Patent Grant
D247720

References
Source

Patent Number
D247,720
Date Filed
Monday, December 15, 1975
48 years ago
Date Issued
Tuesday, April 11, 1978
46 years ago

Inventors
- Frank J. Wilhelm
Original Assignees
- The Fluorocarbon Company
Examiners
- Ansher; Bernard
Agents
- Knobbe; Louis J.

US Classifications
- D24 - Medical and laboratory equipment
Field of Search
- US
- 128 191 R
- 128 191 A
- 128 209
- 128 1427
- 128 1 B
- D83 1 K
- D83 1 L
- D83 1 G
- D24 11
- D24 99
- 269 322
International Classifications
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for an oxygen hood, as shown.

US Referenced Citations (5)

Number	Name	Date	Kind
D182394	Adolphson	Apr 1958
3006339	Smith	Oct 1961
3540446	Dixon	Nov 1970
3813092	Foster	May 1974
3976063	Henneman et al.	Aug 1976

Foreign Referenced Citations (1)

Number	Date	Country
107,372	May 1939	AU