Granted Patent
Utility
US 4,847,264 · App. 06/945,669
Bicyclic nitrogen heterocyclic ethers and thioethers, and their pharmaceutical uses
Inventors:
Henry F. Campbell, Donald E. Kuhla, William L. Studt, Stuart A. Dodson
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: Dec 23, 1986
Inventors
Henry F. Campbell
Donald E. Kuhla
William L. Studt
Stuart A. Dodson
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.