3854808

Information

• Patent Grant
• 3854808

• References
• Source

• Patent Number

  3,854,808

• Date Filed

  Not available

• Date Issued

  Tuesday, December 17, 1974
  50 years ago

• CPC

  • B41M5/398 - Processes based on the production of stickiness patterns using powders
  • B41J2/4655 - using character templates
  • B41J2/475 - for heating selectively by radiation or ultrasonic waves
  • B41M5/26 - Thermography; Marking by high energetic means
  • G03B27/306 - Heat development
  • G03G15/24 - whereby at least two steps are performed simultaneously
  • G03G15/344 - by selectively transferring the powder to the recording medium
  • G03G19/00 - Processes using magnetic patterns Apparatus therefor
  • G06K15/12 - by photographic printing
  • G06K15/14 - by electrographic printing
  • Y10S101/37 - Printing employing electrostatic force

• US Classifications

  • 396 - Photography