Granted Patent
Utility
US 5,698,559 · App. 08/620,643
Disubstituted polycyclic systems as cognition enhancers
Inventors:
Wendell W. Wilkerson, Christopher A. Teleha
Patented Case
View Patent ↗
Granted: Dec 16, 1997
Filed: Mar 25, 1996
Inventors
Wendell W. Wilkerson
Christopher A. Teleha
Assignee (at issue)
The DuPont Merck Pharmaceutical Company
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.