3677460

Information

• Patent Grant
• 3677460

• References
• Source

• Patent Number

  3,677,460

• Date Filed

  Not available

• Date Issued

  Tuesday, July 18, 1972
  52 years ago

• CPC

  • B43M7/004 - including non-mechanical means
  • B65D27/32 - Opening devices incorporated during envelope manufacture
  • Y10S83/912 - Envelope openers

• US Classifications

  • 206 - Special receptacle or package
  • 053 - Package making
  • 083 - Cutting
  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 229 - Envelopes, wrappers, and paperboard boxes
  • 427 - Coating processes