Granted Patent
Utility
US 5,155,255 · App. 07/673,909
Process for producing cycloalkenylalkenes
Inventors:
Mario Mazzuchelli, Milan Soukup, Paul Spurr, Claude Stritt
Patented Case
View Patent ↗
Granted: Oct 13, 1992
Filed: Mar 25, 1991
Inventors
Mario Mazzuchelli
Milan Soukup
Paul Spurr
Claude Stritt
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.