Heater insulator

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Information

Patent Grant
D367844

References
Source

Patent Number
D367,844
Date Filed
Thursday, May 4, 1995
29 years ago
Date Issued
Tuesday, March 12, 1996
28 years ago

Inventors
- Roger P. Engelke
Original Assignees
- HART & COOLEY, INC
Examiners
- Sincavage; Joel
Agents
- Varnum, Riddering, Schmidt & Howlett

US Classifications
- D13 - Equipment for production, distribution, or transformation of energy
Field of Search
- US
- D13 129
- D13 131
- D13 132
- 174 30
- 174 138 J
- 219 532
- 219 536
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a heater insulator, as shown and described.

US Referenced Citations (11)

Number	Name	Date	Kind
D248943	King	Aug 1978
1695801	Dibble	Dec 1928
3846619	Wightman et al.	Nov 1974
3890487	Wightman et al.	Jun 1975
3992609	Alexander	Nov 1976
4250399	King	Feb 1981
4268742	Cottrell et al.	May 1981
4363959	Cottrell et al.	Dec 1982
4458141	Howard et al.	Jul 1984
4472624	Janning	Sep 1984
4831017	Sherrill	Jul 1985

Foreign Referenced Citations (2)

Number	Date	Country
214058	Mar 1924	GBX
1003610	Sep 1965	GBX