TREA

Ribbed helmet

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Information

  • Patent Grant
  • D255394
  • Patent Number
    D255,394
  • Date Filed
    Tuesday, April 11, 1978
    47 years ago
  • Date Issued
    Tuesday, June 17, 1980
    45 years ago
  • US Classifications
    Field of Search
    • US
    • D02 230
    • D02 231
    • 002 195
    • 002 410
    • 002 425
  • International Classifications
    • Term of Grant
      14Years
Information
Abstract
Description
Claims
  • The ornamental design for a ribbed helmet, substantially as shown and described.
US Referenced Citations (1)
Number Name Date Kind
D228211 O'Connor Aug 1973
Foreign Referenced Citations (1)
Number Date Country
12765 May 1916 GBX
Non-Patent Literature Citations (1)
Entry
Bullard Indus. Safety Equipment, Cat. No. 66A, Jan. 1966, p. 4, Item #6, "Estherene Hel/Cap Helmet".