3840680

Information

• Patent Grant
• 3840680

• References
• Source

• Patent Number

  3,840,680

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1974
  50 years ago

• CPC

  • B32B27/00 - Layered products comprising a layer of synthetic resin
  • A23C19/166 - with non-edible preformed foils, films or bandages
  • Y10T428/31507 - Of polycarbonate

• US Classifications

  • 426 - Food or edible material: processes, compositions, and products
  • 428 - Stock material or miscellaneous articles
  • 528 - Synthetic resins or natural rubbers