Granted Patent
Utility
US 5,693,668 · App. 08/382,941
Acetylcholinesterase inhibitors
Inventors:
Daniel Schirlin, Jean-Noel Collard, Jean-Marie Hornsperger, Prakash Keshary
Patented Case
View Patent ↗
Granted: Dec 2, 1997
Filed: Jan 31, 1995
Inventors
Daniel Schirlin
Jean-Noel Collard
Jean-Marie Hornsperger
Prakash Keshary
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.