IP Library › Granted Patent US 4,542,213
Granted Patent Utility
US 4,542,213 · App. 06/590,057

Triphenodioxazine acid dyes

Inventors: Robert D. McClelland, Andrew H. M. Renfrew
Patented Case View Patent ↗
Granted: Sep 17, 1985 Filed: Mar 15, 1984
Inventors
Robert D. McClelland
Andrew H. M. Renfrew
Assignee (at issue)
IMPERIAL CHEMICAL INDUSTRIES LIMITED

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Quick Facts
Patent No.
US 4,542,213
App. No.
06/590,057
Filed
1984-03-15
Granted
1985-09-17
Kind
A