Cylindrical filter element

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Information

Patent Grant
D349567

References
Source

Patent Number
D349,567
Date Filed
Tuesday, April 9, 1991
34 years ago
Date Issued
Tuesday, August 9, 1994
30 years ago

Inventors
- Kenneth M. Williamson
- John R. Miller
Original Assignees
- Pall Corporation
Examiners
- Burke; Wallace R.
- Lichtenstein; Lisa
Agents
- Leydig, Voit & Mayer

US Classifications
- D23 - Environmental heating and cooling
Field of Search
- US
- 055 520
- 210 4934
- D23 365
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a cylindrical filter element, as shown and described.

US Referenced Citations (4)

Number	Name	Date	Kind
3241680	Humbert, Jr.	Mar 1966
3442392	Skelley	May 1969
4402830	Pall	Sep 1983
5039413	Harwood et al.	Aug 1991

Foreign Referenced Citations (1)

Number	Date	Country
1337170	Nov 1973	GBX