Portable electric heater

- Duracraft Corporation
Description

FIG. 1 is a front, top, and left side perspective view of a portable electric heater showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a rear elevation view thereof; and,

FIG. 4 is a right side elevation view thereof.

Referenced Cited
U.S. Patent Documents
D84940 August 1931 Kahn
D93860 November 1934 Wolters
D163235 May 1951 Wilson
D170488 September 1953 Wilson
D190832 July 1961 Petrucelli
D276457 November 20, 1984 Heger
D287080 December 9, 1986 Densen
2533409 December 1950 Tice
Other references
  • Efel Co. Adv. Brochure, p. 2, Monatana Stove, top right side of page. Tradeshow Brochures Box I. Alternative Energy Retailer, 3/84 p. 41, Severn Stove, WHA 1984 Tradeshow Brochures Box I. Copper-Clad Malleable Range Co., p. 9, Twin Flue Super-Heater.
Patent History
Patent number: D328341
Type: Grant
Filed: Aug 1, 1990
Date of Patent: Jul 28, 1992
Assignee: Duracraft Corporation (Sudbury, MA)
Inventor: Bernard Chiu (Ashland, MA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lisa Lichtenstein
Attorneys: John E. Toupal, Harold G. Jarcho
Application Number: 7/561,534
Classifications
Current U.S. Class: Ornate Cast Iron Type (26) (D23/346); D/6448; D/6440; D/6470