Rotary cone drill bit

Information

  • Patent Grant
  • D384084
  • Patent Number
    D384,084
  • Date Filed
    Tuesday, September 12, 1995
    30 years ago
  • Date Issued
    Tuesday, September 23, 1997
    28 years ago
  • US Classifications
    Field of Search
    • US
    • D15 139
    • 175 374
    • 175 426
    • 175 378
    • 175 406
    • 175 429
    • 175 353
    • 175 359
    • 175 371
    • 175 372
    • 175 342
    • 175 341
    • 175 376
    • 175 377
    • 175 340
  • International Classifications
    • 1509
    • Term of Grant
      14Years
Abstract
Description
Claims
  • The ornamental design for a rotary cone drill bit, as shown.
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Foreign Referenced Citations (2)
Number Date Country
936382 U Dec 1955 DEX
533716 Oct 1976 SUX
Continuations (1)
Number Date Country
Parent 33599 Jan 1995