2530742

Information

• Patent Grant
• 2530742

• References
• Source

• Patent Number

  2,530,742

• Date Filed

  Not available

• Date Issued

  Tuesday, November 21, 1950
  74 years ago

• CPC

  • G02B3/04 - with continuous faces that are rotationally symmetrical but deviate from a true sphere
  • Y10S264/66 - Processes of reshaping and reforming
  • Y10S264/71 - Processes of shaping by shrinking
  • Y10S359/90 - Methods
  • Y10S425/004 - Back pressure

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 359 - Optical: systems and elements
  • 425 - Plastic article or earthenware shaping or treating: apparatus