Granted Patent
Utility
US 4,778,814 · App. 07/027,300
Method of treating ocular allergy by topical application of a 2-substituted-1,2-benzisoselenazol-3(2H)-one
Inventor:
William D. Cash
Patented Case
View Patent ↗
Granted: Oct 18, 1988
Filed: Mar 18, 1987
Inventor
William D. Cash
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.