3788920

Information

• Patent Grant
• 3788920

• References
• Source

• Patent Number

  3,788,920

• Date Filed

  Not available

• Date Issued

  Tuesday, January 29, 1974
  51 years ago

• CPC

  • B31F1/2827 - Edge treatment
  • Y10T156/1011 - Overedge bending or overedge folding
  • Y10T156/1059 - Splitting sheet lamina in plane intermediate of faces
  • Y10T156/1064 - Partial cutting [e.g., grooving or incising]
  • Y10T428/24777 - Edge feature

• US Classifications

  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 229 - Envelopes, wrappers, and paperboard boxes
  • 428 - Stock material or miscellaneous articles