2195798

Information

• Patent Grant
• 2195798

• References
• Source

• Patent Number

  2,195,798

• Date Filed

  Not available

• Date Issued

  Tuesday, April 2, 1940
  84 years ago

• CPC

  • C09K8/22 - Synthetic organic compounds
  • Y10S507/907 - Indicating means
  • Y10T436/13 - Tracers or tags

• US Classifications

  • 507 - Earth boring, well treating, and oil field chemistry
  • 436 - Chemistry: analytical and immunological testing