Granted Patent
Utility
US 5,162,341 · App. 07/659,443
Use of sigma receptor antagonists for treatment of amphetamine abuse
Inventor:
Leonard Cook
Patented Case
View Patent ↗
Granted: Nov 10, 1992
Filed: Feb 22, 1991
Inventor
Leonard Cook
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.