Gas-fired boiler for central heating and hot water

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Information

Patent Grant
D311950

References
Source

Patent Number
D311,950
Date Filed
Monday, December 12, 1988
36 years ago
Date Issued
Tuesday, November 6, 1990
34 years ago

Inventors
- Michael J. Excell
Original Assignees
- Potterton International Limited
Examiners
- Burke; Wallace R.
- Lichtenstein; Lisa
Agents
- Abelman Frayne Rezac & Schwab

US Classifications
- D23 - Environmental heating and cooling
Field of Search
- US
- D23 318
- D23 319
- 237 16
- 237 8 R
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a gas-fired boiler for central heating and hot water, as shown and described.

Priority Claims (1)

Number	Date	Country	Kind
1051629	Jun 1988	GBX

US Referenced Citations (7)

Number	Name	Date	Kind
D87553	Teague	Aug 1932
D177049	Janis	Mar 1956
D207139	Jakobsson	Mar 1967
D207615	Clever et al.	May 1967
D220332	Myler	Mar 1971
2508736	Warden, Sr.	May 1950
4756475	Vergne	Jul 1988

Foreign Referenced Citations (2)

Number	Date	Country
2327493	Jun 1977	FRX
190220	Aug 1986	JPX