Granted Patent
Utility
US 5,780,625 · App. 08/756,222
4-aminophenol derivatives
Inventors:
Suruliappa Jeganathan, Christophe Bulliard
Patented Case
View Patent ↗
Granted: Jul 14, 1998
Filed: Nov 25, 1996
Inventors
Suruliappa Jeganathan
Christophe Bulliard
Assignee (at issue)
Ciba Specialty Chemicals Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.