IP Library › Granted Patent US 4,664,671
Granted Patent Utility
US 4,664,671 · App. 06/786,005

Thermal transfer printing cationic dye with soft anionic base

Inventor: Peter Gregory
Patented Case View Patent ↗
Granted: May 12, 1987 Filed: Oct 10, 1985
Inventor
Peter Gregory
Assignee (at issue)
IMPERIAL CHEMICAL INDUSTRIES LIMITED

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Quick Facts
Patent No.
US 4,664,671
App. No.
06/786,005
Filed
1985-10-10
Granted
1987-05-12
Kind
A