Granted Patent
Utility
US 4,269,978 · App. 05/890,440
Thiazolylphthalide compounds
Inventor:
Jean C. Petitpierre
Patented Case
View Patent ↗
Granted: May 26, 1981
Filed: Mar 27, 1978
Inventor
Jean C. Petitpierre
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.