Granted Patent
Utility
US 4,954,494 · App. 07/303,879
Pyridyl-pyridazinone and pyridyl-pyrazolinone compounds and their use in the treatment of congestive heat failure
Inventors:
Donald E. Kuhla, Henry F. Campbell, William L. Studt, William C. Faith
Patented Case
View Patent ↗
Granted: Sep 4, 1990
Filed: Jan 30, 1989
Inventors
Donald E. Kuhla
Henry F. Campbell
William L. Studt
William C. Faith
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.