Granted Patent
Utility
US 5,693,639 · App. 08/604,064
Therapeutic heterocyclyl amionosulfonyl phenyl compounds
Inventors:
James Empfield, Daniel Ray Mayhugh, Keith Russell
Patented Case
View Patent ↗
Granted: Dec 2, 1997
Filed: Feb 20, 1996
Inventors
James Empfield
Daniel Ray Mayhugh
Keith Russell
Assignee (at issue)
Zeneca Limited
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.