Inside surface of a filter element having spacer construction

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Information

Patent Grant
D422071

References
Source

Patent Number
D422,071
Date Filed
Thursday, March 19, 1998
27 years ago
Date Issued
Tuesday, March 28, 2000
25 years ago

Inventors
Original Assignees
- Donaldson Company, Inc.
Examiners
- Lichtenstein; Lisa
Agents
- Merchant & Gould P.C.

US Classifications
- D23 - Environmental heating and cooling
Field of Search
- US
- D23 365
- 055 510
International Classifications
- 2304
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for inside surface of a filter element having spacer construction, as shown and described.

US Referenced Citations (1)

Number	Name	Date	Kind
4135899	Gauer	Jan 1979

Non-Patent Literature Citations (1)

Entry
Declaration of Thomas G. Miller (with attached Exhibits A and B).