TREA

Electrical heater

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Information

  • Patent Grant
  • D313069
  • Patent Number
    D313,069
  • Date Filed
    Thursday, December 22, 1988
    36 years ago
  • Date Issued
    Tuesday, December 18, 1990
    34 years ago
  • US Classifications
    Field of Search
    • US
    • D23 335
    • D23 332
    • D23 385
    • 219 339
    • 219 344
    • 219 342
    • 219 359
    • 219 366
    • 219 367
    • 219 368
    • 219 369
    • 219 347
    • Term of Grant
      14Years
Information
Abstract
Description
Claims
  • The ornamental design for an electrical heater, as shown.
US Referenced Citations (7)
Number Name Date Kind
D184458 Reinecke Feb 1959
2475113 Stiles Jul 1949
2498157 Farr Feb 1950
3681567 Boecher Aug 1972
4088870 Warner May 1978
4398082 Johannsen Aug 1983
4737616 Wen-Ying Apr 1988
Foreign Referenced Citations (2)
Number Date Country
254743 Oct 1964 AUX
58803 Mar 1967 DEX
Non-Patent Literature Citations (1)
Entry
Markel Electric Products, Inc. Adv. Brochure, p. 3, Hi-Wattage Heetaires, right middle of page.