Valve cover

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Information

Patent Grant
D347299

References
Source

Patent Number
D347,299
Date Filed
Tuesday, October 13, 1992
33 years ago
Date Issued
Tuesday, May 24, 1994
31 years ago

Inventors
Original Assignees
- 3M COMPANY
Examiners
- Chin; Kay H.
Agents
- Griswold; Gary L.
- Kirn; Walter N.
- Hanson; Karl G.

US Classifications
- D29 - Equipment for safety, protection, and rescue
Field of Search
- US
- 128 20119
- 128 20619
- 128 20524
- 128 20617
- 128
- 128 20612
- D29 6-9
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a valve cover, as shown and described.

US Referenced Citations (6)

Number	Name	Date	Kind
D294410	Montest	Feb 1988
2751904	Lewis	Jun 1956
4756308	Ryback	Jul 1988
4827924	Japuntich	May 1989
4838262	Katz	Jun 1989
4958633	Angell	Sep 1990

Foreign Referenced Citations (1)

Number	Date	Country
72499	May 1993	CAX

Non-Patent Literature Citations (2)

Entry
3M product literature for Particulate Respirators (Apr. 1990).
3M product literature for Gas and Vapor Respirators (Jun. 1990).