Granted Patent
Utility
US 5,508,280 · App. 08/380,472
5H-Dibenzo (A,D) cycloheptenes as muscarinic receptor antagonists
Inventors:
Marcel Hibert, Luc Van Hijfte, Mary Richards, Paul Moser
Patented Case
View Patent ↗
Granted: Apr 16, 1996
Filed: Jan 30, 1995
Inventors
Marcel Hibert
Luc Van Hijfte
Mary Richards
Paul Moser
Assignee (at issue)
Merrell Pharmaceuticals, Inc.
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.