3807118

Information

• Patent Grant
• 3807118

• References
• Source

• Patent Number

  3,807,118

• Date Filed

  Not available

• Date Issued

  Tuesday, April 30, 1974
  50 years ago

• CPC

  • B31B19/84 - Forming valves or applying valve inserts
  • B65D31/14 - Valve bags
  • B31B2219/9067 - Applying patches or flexible valve inserts

• US Classifications

  • 053 - Package making
  • 383 - Flexible bags
  • 493 - Manufacturing container or tube from paper