Granted Patent
Utility
US 4,579,973 · App. 06/699,874
Process for the manufacture of cyclohexene derivatives
Inventors:
Erich Widmer, Reinhard Zell
Patented Case
View Patent ↗
Granted: Apr 1, 1986
Filed: Feb 8, 1985
Inventors
Erich Widmer
Reinhard Zell
Assignee (at issue)
HOFFMANN-LA ROCHE 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.