Granted Patent
Utility
US 4,859,697 · App. 07/254,182
Substituted acenaphthenes and their use as inhibitors of phospholipase A2
Inventors:
William Charles Ripka, William J. Sipio
Patented Case
View Patent ↗
Granted: Aug 22, 1989
Filed: Oct 6, 1988
Inventors
William Charles Ripka
William J. Sipio
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
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.