×

Triphenazinoxazines

  • US 5,290,930 A
  • Filed: 02/01/1993
  • Issued: 03/01/1994
  • Est. Priority Date: 03/31/1986
  • Status: Expired due to Fees
First Claim
Patent Images

1. A compound of the formula ##STR13## wherein R77, R78 and R79 are the same or different and are each selected from the group consisting of alkyl of 1-6 carbon atoms.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×