Portable electric convection heater

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Information

Patent Grant
D311951

References
Source

Patent Number
D311,951
Date Filed
Wednesday, December 21, 1988
36 years ago
Date Issued
Tuesday, November 6, 1990
34 years ago

Inventors
- Melvin Dubin
Original Assignees
- Slant/Fin Corporation
Examiners
- Gandy; James M.
- Lichtenstein; Lisa
Agents
- Dubno; Herbert

US Classifications
- D23 - Environmental heating and cooling
Field of Search
- US
- D23 332
- D23 335
- 219 359
- 219 342
- 219 366
- 219 367
- 219 368
- 219 34
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a portable electric convection heater, as shown and described.

US Referenced Citations (3)

Number	Name	Date	Kind
D157834	Bourner	Mar 1950
D159489	Jones	Aug 1950
4307284	Perron	Dec 1981

Foreign Referenced Citations (3)

Number	Date	Country
811478	Aug 1951	DEX
529694	Dec 1921	FRX
229552	Feb 1944	CHX

Non-Patent Literature Citations (1)

Entry
Electrical Merchandising, Jan. 1947, p. 231, Overblast Convection Heater, upper left side of page.