3787276

Information

• Patent Grant
• 3787276

• References
• Source

• Patent Number

  3,787,276

• Date Filed

  Not available

• Date Issued

  Tuesday, January 22, 1974
  50 years ago

• CPC

  • E04C2/322 - with parallel corrugations
  • B31F1/2886 - Additionally reinforcing
  • B65D65/403 - with at least one corrugated layer
  • E04C2/243 - one at least of the material being insulating
  • E04C2/3405 - spaced apart by profiled spacer sheets
  • E04C2002/3466 - with sinusoidal corrugations
  • E04C2002/3494 - Apparatus for making profiled spacer sheets
  • Y10T156/1016 - Transverse corrugating
  • Y10T156/1025 - to form undulated to corrugated sheet and securing to base with parts of shaped areas out of contact
  • Y10T428/24661 - Forming, or cooperating to form cells
  • Y10T428/24694 - Parallel corrugations
  • Y10T428/249984 - Adhesive or bonding component contains voids

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 156 - Adhesive bonding and miscellaneous chemical manufacture