3806079

Information

• Patent Grant
• 3806079

• References
• Source

• Patent Number

  3,806,079

• Date Filed

  Not available

• Date Issued

  Tuesday, April 23, 1974
  50 years ago

• CPC

  • B29D11/00182 - using carrier plates
  • B29C33/0038 - with sealing means or the like
  • B29D11/00028 - Bifocal lenses; Multifocal lenses
  • B29D11/00413 - made by moulding between two mould parts which are not in direct contact with one another
  • B29L2031/7602 - Maps
  • Y10S425/808 - Lens mold

• US Classifications

  • 249 - Static molds
  • 425 - Plastic article or earthenware shaping or treating: apparatus