3653900

Information

• Patent Grant
• 3653900

• References
• Source

• Patent Number

  3,653,900

• Date Filed

  Not available

• Date Issued

  Tuesday, April 4, 1972
  52 years ago

• CPC

  • H01J9/144 - Mask treatment related to the process of dot deposition during manufacture of luminescent screen
  • H01J9/142 - of shadow-masks for colour television tubes
  • H01J29/076 - characterised by the shape or distribution of beam-passing apertures

• US Classifications

  • 430 - Radiation imagery chemistry: process, composition, or product thereof
  • 216 - Etching a substrate: processes
  • 313 - Electric lamp and discharge devices
  • 427 - Coating processes