×

BENZO[b]PYRYLIUM DYE SALTS

  • US 3,694,462 A
  • Filed: 03/02/1970
  • Issued: 09/26/1972
  • Est. Priority Date: 03/02/1970
  • Status: Expired due to Term
First Claim
Patent Images

2. Benzocyclohept(5,4-b)-naphtho(1,2-e)pyrylium perchlorate.

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