2664025

Information

• Patent Grant
• 2664025

• References
• Source

• Patent Number

  2,664,025

• Date Filed

  Not available

• Date Issued

  Tuesday, December 29, 1953
  71 years ago

• CPC

  • B29C43/36 - Moulds for making articles of definite length
  • B29C43/021 - characterised by the shape of the surface
  • B29D11/00086 - methods for matching the anterior surface of the contact lens to the shape of an eyeball
  • G02C7/021 - with pattern for identification or with cosmetic or therapeutic effects
  • G02C7/04 - Contact lenses for the eyes
  • B29L2011/0016 - Lenses
  • Y10S425/808 - Lens mold

• US Classifications

  • 351 - Optics: eye examining, vision testing and correcting
  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 425 - Plastic article or earthenware shaping or treating: apparatus