Granted Patent
Utility
US 4,877,798 · App. 07/262,168
Treatment of fibromyalgia
Inventor:
Stephen M. Sorensen
Patented Case
View Patent ↗
Granted: Oct 31, 1989
Filed: Oct 18, 1988
Inventor
Stephen M. Sorensen
Assignee (at issue)
Merrell Dow 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.