3506749

Information

• Patent Grant
• 3506749

• References
• Source

• Patent Number

  3,506,749

• Date Filed

  Not available

• Date Issued

  Tuesday, April 14, 1970
  54 years ago

• CPC

  • B41C3/06 - to produce printing blocks from plastics
  • B29C67/221 - Applying counter pressure during foaming
  • C08J9/30 - by mixing gases into liquid compositions or plastisols
  • B29C33/38 - characterised by the material or the manufacturing process
  • B29C59/00 - Surface shaping of articles
  • B29K2027/06 - PVC
  • B29L2031/7176 - Letters

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 101 - Printing