Granted Patent
Utility
US 4,323,558 · App. 06/176,076
Topical trien containing pharmaceutical compositions and methods of use
Inventor:
Eric L. Nelson
Patented Case
View Patent ↗
Granted: Apr 6, 1982
Filed: Aug 7, 1980
Inventor
Eric L. Nelson
Assignee (at issue)
Nelson Research & Development 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.