Granted Patent
Utility
US 4,977,162 · App. 07/379,528
Quinolinyl-chromone derivatives and use for treatment of hypersensitive ailments
Inventors:
Fu-Chih Huang, Henry F. Campbell, Keith S. Learn, Robert A. Galemmo, Jr.
Patented Case
View Patent ↗
Granted: Dec 11, 1990
Filed: Jul 13, 1989
Inventors
Fu-Chih Huang
Henry F. Campbell
Keith S. Learn
Robert A. Galemmo, Jr.
Assignee (at issue)
Rorer Pharmaceutical Corporation
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.