2801439

Information

• Patent Grant
• 2801439

• References
• Source

• Patent Number

  2,801,439

• Date Filed

  Not available

• Date Issued

  Tuesday, August 6, 1957
  67 years ago

• CPC

  • B29C69/001 - a shaping technique combined with cutting
  • B29B7/64 - Stripping the material from the rollers
  • B29C43/22 - of articles of indefinite length
  • B29C43/24 - Calendering
  • B29C47/0021 - Flat flexible articles
  • B29C47/0038 - Combined shaping operations
  • Y10S264/70 - Processes for forming screens or perforating articles
  • Y10S425/235 - Calendar
  • Y10T83/4838 - With anvil backup
  • Y10T83/4844 - Resiliently urged cutter or anvil member
  • Y10T83/9314 - Pointed perforators

• US Classifications

  • 366 - Agitating
  • 083 - Cutting
  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 425 - Plastic article or earthenware shaping or treating: apparatus