3802307

Information

• Patent Grant
• 3802307

• References
• Source

• Patent Number

  3,802,307

• Date Filed

  Not available

• Date Issued

  Tuesday, April 9, 1974
  50 years ago

• CPC

  • B31B19/16 - Cutting webs to form sheets or blanks
  • B31B2219/145 - Cutting webs
  • Y10S83/911 - Envelope blank forming
  • Y10T83/0467 - By separating products from each other
  • Y10T83/0577 - Repetitive blanking
  • Y10T83/2061 - By face-engaging means to push product broadside into stacked relation
  • Y10T83/2159 - By spring means
  • Y10T83/4529 - With uninterrupted flow of work from supply source

• US Classifications

  • 083 - Cutting
  • 493 - Manufacturing container or tube from paper