Granted Patent
Utility
US 4,772,725 · App. 07/139,561
Anthrimidecarbazole compound having thenoylamino groups
Inventor:
Hans Altermatt
Patented Case
View Patent ↗
Granted: Sep 20, 1988
Filed: Dec 30, 1987
Inventor
Hans Altermatt
Assignee (at issue)
Ciba-Geigy
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.