3415991

Information

• Patent Grant
• 3415991

• References
• Source

• Patent Number

  3,415,991

• Date Filed

  Not available

• Date Issued

  Tuesday, December 10, 1968
  56 years ago

• CPC

  • G02F1/132 - Thermal activation of liquid crystals exhibiting a thermo-optic effect
  • G02B23/12 - with means for image conversion or intensification
  • G09F9/35 - being liquid crystals
  • G09G3/3603 - with thermally addressed liquid crystals

• US Classifications

  • 349 - Liquid crystal cells, elements and systems
  • 347 - Incremental printing of symbolic information
  • 365 - Static information storage and retrieval