3876494

Information

• Patent Grant
• 3876494

• References
• Source

• Patent Number

  3,876,494

• Date Filed

  Not available

• Date Issued

  Tuesday, April 8, 1975
  50 years ago

• CPC

  • B42F13/0013 - made of special materials
  • B29C44/5636 - with the addition of heat
  • B29C53/06 - Forming folding lines by pressing or scoring
  • B42D3/02 - made of special materials
  • B29C37/0057 - Moulding single grooves or ribs
  • B29C43/00 - Compression moulding
  • B29K2023/12 - PP
  • B29K2105/04 - cellular or porous
  • B29L2031/7052 - Book covers
  • Y10S264/04 - Molding and forming bendable and flexible product from rigid preform
  • Y10T156/1026 - with slitting or removal of material at reshaping area prior to reshaping
  • Y10T156/1031 - with preshaping of lamina
  • Y10T428/24198 - Channel-shaped edge component [e.g., binding, etc.]
  • Y10T428/24504 - Component comprises a polymer [e.g., rubber, etc.]
  • Y10T428/26 - Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 264 - Plastic and nonmetallic article shaping or treating: processes