Granted Patent
Utility
US 5,990,132 · App. 08/664,631
Polycyclic systems, and derivatives thereof, as neurotransmitter release enhancers useful in the treatment of cognitive disorders
Inventors:
Christopher A. Teleha, Wendell W. Wilkerson, Richard A. Earl
Patented Case
View Patent ↗
Granted: Nov 23, 1999
Filed: Jun 17, 1996
Inventors
Christopher A. Teleha
Wendell W. Wilkerson
Richard A. Earl
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.