Twist on disposable filter

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Information

Patent Grant
D296925

References
Source

Patent Number
D296,925
Date Filed
Friday, May 30, 1986
38 years ago
Date Issued
Tuesday, July 26, 1988
35 years ago

Inventors
- John J. Groezinger
- Philip E. Moldenhauer
Original Assignees
- Caterpillar Inc.
Examiners
- Burke; Wallace R.
- Vinson; Brian N.
Agents
- Grant; John W.

US Classifications
- D23 - Environmental heating and cooling
Field of Search
- US
- D23 209
- 210 348
- 210 4164
- 210 443-444
- 210 DIG 17
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a twist on disposable filter, substantially as shown.

US Referenced Citations (6)

Number	Name	Date	Kind
D132610	Zuckerman	Jun 1942
D255045	Kronsbein	May 1980
D288707	Macevicz et al.	Mar 1987
D293016	Fisher	Dec 1987
3481478	Williams	Dec 1969
4642183	Hebert	Feb 1987