3689348

Information

• Patent Grant
• 3689348

• References
• Source

• Patent Number

  3,689,348

• Date Filed

  Not available

• Date Issued

  Tuesday, September 5, 1972
  52 years ago

• CPC

  • B29C44/308 - Thickness separators and side seals
  • B29C44/30 - Expanding the moulding material between endless belts or rollers
  • B29C44/326 - Joining the preformed parts
  • E04C2/296 - composed of insulating material and non-metallic or unspecified sheet-material
  • E04C2/32 - formed of corrugated or otherwise indented sheet-like material composed of such layers with or without layers of flat sheet-like material
  • B29L2007/00 - Flat articles
  • B29L2009/00 - Layered products
  • Y10T156/1016 - Transverse corrugating
  • Y10T156/1025 - to form undulated to corrugated sheet and securing to base with parts of shaped areas out of contact

• US Classifications

  • 156 - Adhesive bonding and miscellaneous chemical manufacture