Valve cover

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Information

Patent Grant
D347298

References
Source

Patent Number
D347,298
Date Filed
Tuesday, October 13, 1992
32 years ago
Date Issued
Tuesday, May 24, 1994
30 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 20612
- D29 6-9
- Term of Grant
  14Years

Information

Abstract

Description

Claims

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

Non-Patent Literature Citations (2)

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