3874973

Information

• Patent Grant
• 3874973

• References
• Source

• Patent Number

  3,874,973

• Date Filed

  Not available

• Date Issued

  Tuesday, April 1, 1975
  49 years ago

• CPC

  • B32B3/04 - characterised by at least one layer folded at the edge
  • B29B15/122 - with a matrix in liquid form
  • B29C53/04 - of plates or sheets
  • B29C63/044 - continuously
  • B29C70/508 - and first forming a mat composed of short fibres
  • B29C70/542 - Placing or positioning the reinforcement in a covering or packaging element before or during moulding
  • B31F1/0029 - Folding edges; Folding edges combined with joining; Reinforcing edges during the folding thereof
  • B29L2009/00 - Layered products
  • Y10T156/1011 - Overedge bending or overedge folding
  • Y10T428/24231 - At opposed marginal edges

• US Classifications

  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 242 - Winding, tensioning, or guiding
  • 427 - Coating processes
  • 428 - Stock material or miscellaneous articles