Pipe coupling

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Information

Patent Grant
D291482

References
Source

Patent Number
D291,482
Date Filed
Wednesday, March 13, 1985
40 years ago
Date Issued
Tuesday, August 18, 1987
38 years ago

Inventors
- Efrain D. Vassallo
- Jose E. Valls JR.
Original Assignees
- Vassallo Research and Development Corporation
Examiners
- Largen; James R.
Agents
- Steele, Gould & Fried

US Classifications
- D23 - Environmental heating and cooling
Field of Search
- US
- D23 40-47
- 285 150
- 285 156
- 285 177
- 285 179
- 285 231
- 285 345
- 285 369
- 285 383
- 285 423
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a pipe coupling, as shown and described.

US Referenced Citations (15)

Number	Name	Date	Kind
D135633	Stark et al.	May 1943
D135634	Stark et al.	May 1943
D137384	Corley	Feb 1944
865497	Kenyon	Sep 1907
2121558	Coe et al.	Jun 1938
3064983	Halterman	Nov 1962
3582113	Cauthery	Jun 1971
3592491	Glover	Jul 1971
3791679	Glover	Feb 1974
4130302	Mitchell et al.	Dec 1978
4223896	Strom	Sep 1980
4343480	Vassallo	Aug 1982
4368894	Parmann	Jan 1983
4371179	Bohman	Feb 1983
4637618	Valls	Jan 1987