2197015

Information

• Patent Grant
• 2197015

• References
• Source

• Patent Number

  2,197,015

• Date Filed

  Not available

• Date Issued

  Tuesday, April 16, 1940
  84 years ago

• CPC

  • G03F1/68 - Preparation processes not covered by groups G03F1/20 - G03F1/50
  • G03F1/0038 - using chemical means
  • Y10S430/152 - Making camera copy
  • Y10T428/24802 - Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 427 - Coating processes
  • 430 - Radiation imagery chemistry: process, composition, or product thereof