3720349

Information

• Patent Grant
• 3720349

• References
• Source

• Patent Number

  3,720,349

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1973
  51 years ago

• CPC

  • B21D51/383 - scoring lines, tear strips or pulling tabs
  • B65D17/14 - by cold or hot pressing of plastic sealing material
  • B65D17/163 - for opening completely by means of a tearing tab
  • B65D17/165 - for opening partially by means of a tearing tab

• US Classifications

  • 220 - Receptacles