Granted Patent
Utility
US 4,565,828 · App. 06/628,208
Benzofuran derivatives and their therapeutic use
Inventors:
Marcel Descamps, Peter Polster
Patented Case
View Patent ↗
Granted: Jan 21, 1986
Filed: Jul 5, 1984
Inventors
Marcel Descamps
Peter Polster
Assignee (at issue)
Sanofi
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.