Mechanical test plug for overflow and waste drains

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Information

Patent Grant
D373623

References
Source

Patent Number
D373,623
Date Filed
Wednesday, January 25, 1995
29 years ago
Date Issued
Tuesday, September 10, 1996
28 years ago

Inventors
- Allen D. Mathison
Original Assignees
- Cherne Industries Incorporated
Examiners
- Zarfas; Louis S.
- Andoll; Gregory
Agents
- Eggink; Anthony G.

US Classifications
- D23 - Environmental heating and cooling
Field of Search
- US
- D23 259-262
- D23 263
- D23 249
- D23 235
- D08 387
- D08 398
- 138 89
- 138 178
- 004 295
- D24 26
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a mechanical test plug for overflow and waste drains, as shown and described.

US Referenced Citations (11)

Number	Name	Date	Kind
D155997	Gries	Nov 1949
D242118	Ono	Nov 1976
D274979	Hill	Aug 1984
D302110	Gonzalez	Jul 1989
2245887	Wikander	Jun 1941
3027569	Lantz et al.	Apr 1962
3151845	Leuze	Oct 1964
3509918	Muzinich	May 1970
3550636	Hearne et al.	Dec 1970
4493344	Mathison et al.	Jan 1985
4683597	Taylor, Jr. et al.	Aug 1987

Foreign Referenced Citations (3)

Number	Date	Country
366261	Feb 1932	GBX
373944	Jun 1932	GBX
2147079	May 1985	GBX