3411689

Information

• Patent Grant
• 3411689

• References
• Source

• Patent Number

  3,411,689

• Date Filed

  Not available

• Date Issued

  Tuesday, November 19, 1968
  56 years ago

• CPC

  • B31F1/2886 - Additionally reinforcing
  • Y10T156/1025 - to form undulated to corrugated sheet and securing to base with parts of shaped areas out of contact

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes
  • 156 - Adhesive bonding and miscellaneous chemical manufacture