Granted Patent
Utility
US 4,680,299 · App. 06/727,808
2-phenyl-4-quinolinecarboxylic acids and pharmaceutical compositions thereof
Inventor:
David P. Hesson
Patented Case
View Patent ↗
Granted: Jul 14, 1987
Filed: Apr 26, 1985
Inventor
David P. Hesson
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.