2330837

Information

• Patent Grant
• 2330837

• References
• Source

• Patent Number

  2,330,837

• Date Filed

  Not available

• Date Issued

  Tuesday, October 5, 1943
  81 years ago

• CPC

  • B29D11/00086 - methods for matching the anterior surface of the contact lens to the shape of an eyeball
  • B24B13/0025 - for contact lenses

• US Classifications

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