3861990

Information

• Patent Grant
• 3861990

• References
• Source

• Patent Number

  3,861,990

• Date Filed

  Not available

• Date Issued

  Tuesday, January 21, 1975
  50 years ago

• CPC

  • G04B37/225 - Non-metallic cases
  • Y10T29/49584 - having case, cover, or back
  • Y10T29/49597 - Ornamental stock making
  • Y10T428/166 - Glass, ceramic, or metal sections [e.g., floor or wall tile, etc.]
  • Y10T428/25 - Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
  • Y10T428/8305 - Miscellaneous [e.g., treated surfaces, etc.]

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 029 - Metal working
  • 063 - Jewelry
  • 368 - Horology: time measuring systems or devices
  • 968 - Horology