3812153

Information

• Patent Grant
• 3812153

• References
• Source

• Patent Number

  3,812,153

• Date Filed

  Not available

• Date Issued

  Tuesday, May 21, 1974
  50 years ago

• CPC

  • C12Q1/44 - involving esterase
  • C09B11/08 - Phthaleins; Phenolphthaleins; Fluorescein
  • G01N31/22 - using chemical indicators
  • C12Q2334/40 - Triphenylmethane dye chromogens

• US Classifications

  • 549 - Organic compounds