Granted Patent
Utility
US 5,288,895 · App. 08/045,519
Process for the preparation of a biphenyl derivative
Inventors:
Michel Bouisset, Alain Boudin
Patented Case
View Patent ↗
Granted: Feb 22, 1994
Filed: Apr 6, 1993
Inventors
Michel Bouisset
Alain Boudin
Assignee (at issue)
Societe Anonyme: Elf 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.