3458620

Information

• Patent Grant
• 3458620

• References
• Source

• Patent Number

  3,458,620

• Date Filed

  Not available

• Date Issued

  Tuesday, July 29, 1969
  55 years ago

• CPC

  • E04B1/6812 - Compressable seals of solid form
  • E01C23/0986 - with preformed elements

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 425 - Plastic article or earthenware shaping or treating: apparatus