3917787

Information

• Patent Grant
• 3917787

• References
• Source

• Patent Number

  3,917,787

• Date Filed

  Not available

• Date Issued

  Tuesday, November 4, 1975
  50 years ago

• CPC

  • B29D5/08 - the interlocking members being formed by profiled or castellated edge of a stringer
  • B29C43/222 - characterised by the shape of the surface
  • B29C43/224 - having a profiled section
  • B29C47/00 - Extrusion moulding
  • B29C47/0014 - Filamentary-shaped articles
  • Y10S425/814 - Zipper

• US Classifications

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