Granted Patent
Utility
US 5,275,821 · App. 07/892,146
Amantadine hydrochloride suspension with enhanced dissolution characteristics for use in soft gelatin capsules
Inventor:
George Torosian
Patented Case
View Patent ↗
Granted: Jan 4, 1994
Filed: Jun 5, 1992
Inventor
George Torosian
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.