Granted Patent
Utility
US 4,423,075 · App. 06/332,567
Aldose reductase inhibition by 5-fluoro-2-methyl-1-[[4-(methylsulfonyl)phenyl]methylene]-1H-indene-3-ac etic acid
Inventors:
Dushan M. Dvornik, Nicole Simard-Duquesne
Patented Case
View Patent ↗
Granted: Dec 27, 1983
Filed: Dec 21, 1981
Inventors
Dushan M. Dvornik
Nicole Simard-Duquesne
Assignee (at issue)
Ayerst, McKenna & Harrison, Inc.
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.