Granted Patent
Utility
US 4,283,559 · App. 06/040,625
Process for the manufacture of cyclohexene derivatives
Inventors:
Emil A. Broger, Yvo Crameri, Hans Leuenberger, Erich Widmer, Reinhard Zell
Patented Case
View Patent ↗
Granted: Aug 11, 1981
Filed: May 21, 1979
Inventors
Emil A. Broger
Yvo Crameri
Hans Leuenberger
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.