Face mask

Follow

Information

Patent Grant
D321419

References
Source

Patent Number
D321,419
Date Filed
Thursday, November 9, 1989
35 years ago
Date Issued
Tuesday, November 5, 1991
33 years ago

Inventors
- Dean R. Wallace
Original Assignees
- Intertech Resources Inc.
Examiners
- Chin; Kay H.
Agents
- Marshall, O'Toole, Gerstein, Murray & Bicknell

US Classifications
- D29 - Equipment for safety, protection, and rescue
Field of Search
- US
- D29 6
- D29 7
- D29 8
- 128 20624
- 128 20628
- 128 20626
- 128 20617
- 128 20711
- 128 20223
- 128 20517
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a face mask, as shown and described.

US Referenced Citations (8)

Number	Name	Date	Kind
D189009	Muller	Oct 1960
D293613	Wingler	Jan 1988
D305166	Quinn et al.	Dec 1989
3315674	Bloom et al.	Apr 1967
3982532	Halltin et al.	Sep 1976
4062357	Laerdal	Dec 1977
4337767	Yahata	Jul 1982
4799477	Lewis	Jan 1989