Pipeline plug

Follow

Information

Patent Grant
D378695

References
Source

Patent Number
D378,695
Date Filed
Thursday, May 19, 1994
30 years ago
Date Issued
Tuesday, April 1, 1997
27 years ago

Inventors
- Allen D. Mathison
- Randy D. Smith
Original Assignees
- Cherne Industries Incorporated
Examiners
- Zarfas; Louis S.
- Watterson; Eric
Agents
- Eggink; Anthony G.

US Classifications
- D23 - Environmental heating and cooling
Field of Search
- US
- D23 259
- D23 260
- 138 93
- 206 522
- 383 3
- D06 601
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for the pipeline plug, as shown and described.

US Referenced Citations (12)

Number	Name	Date	Kind
D339949	Wei et al.	Oct 1993
D339950	Jung	Oct 1993
414748	Bentley	Nov 1889
754329	Milliken	Mar 1904
1349072	Lines	Aug 1920
1760750	Goodman	Apr 1928
3276481	McNulty	Aug 1964
3414140	Feldkamp	Aug 1966
4492095	Brister	Jan 1985
4612961	Vetter	Sep 1986
4627470	Carruthers	Dec 1986
5240031	Vigil	Aug 1993

Non-Patent Literature Citations (1)

Entry
Cherne Industries Incorporated, Cherne Single-Size Test-Ball Plug, 1992, Product sheet, 1 page.