Oxygen concentration

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Information

Patent Grant
D320458

References
Source

Patent Number
D320,458
Date Filed
Thursday, March 9, 1989
35 years ago
Date Issued
Tuesday, October 1, 1991
33 years ago

Inventors
- Joseph J. Cerola
- Francis E. Ryder
Original Assignees
- Ryder International Corporation
Examiners
- Reid; Stella
Agents
- Trexler, Bushnell, Giangiorgi & Blackstone, Ltd.

US Classifications
- D24 - Medical and laboratory equipment
Field of Search
- US
- D24 8
- 055 387
- 055 389
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for an oxygen concentrator, as shown and described.

US Referenced Citations (5)

Number	Name	Date	Kind
D261676	McCombs	Nov 1981
3804942	Kato et al.	Apr 1974
3976050	Glasser et al.	Aug 1976
4502873	Mottram et al.	Mar 1985
4545790	Miller et al.	Oct 1985