3752387

Information

• Patent Grant
• 3752387

• References
• Source

• Patent Number

  3,752,387

• Date Filed

  Not available

• Date Issued

  Tuesday, August 14, 1973
  51 years ago

• CPC

  • B65D77/2012 - the cover being crimped or folded over the container flange
  • B29C57/12 - Rim rolling
  • B65B7/2857 - and the container rim
  • B65D77/2024 - the cover being welded or adhered to the container
  • B65D2577/2025 - Multi-layered container

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes
  • 053 - Package making