The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 17, 1985
Filed:
Mar. 15, 1984
Applicant:
Inventors:
Robert D McClelland, Manchester, GB;
Andrew H Renfrew, Bury, GB;
Assignee:
Imperial Chemical Industries PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
544 76 ; 544 77 ; 8658 ;
Abstract
Triphenodioxazine dyes which, in the free acid form, have the formula: ##STR1## wherein A is Cl or Br; Y is cyclopentylene, cyclohexylene or (CH.sub.2).sub.x where x is 2, 3 or 4; and
McClelland, Robert. (1985). Triphenodioxazine acid dyes (U.S. Patent No. 4542213). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4542213
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile