3922416

Information

• Patent Grant
• 3922416

• References
• Source

• Patent Number

  3,922,416

• Date Filed

  Not available

• Date Issued

  Tuesday, November 25, 1975
  49 years ago

• CPC

  • G03H1/028 - by embossing
  • G03G5/022 - Layers for surface-deformation imaging
  • G03H2270/14 - Plastic
  • Y10T428/24612 - Composite web or sheet
  • Y10T428/31565 - Next to polyester [polyethylene terephthalate, etc.]
  • Y10T428/31591 - Next to cellulosic
  • Y10T428/31786 - Of polyester [e.g., alkyd, etc.]

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 359 - Optical: systems and elements