Granted Patent
Utility
US 4,701,540 · App. 06/588,268
Process for carotenoid intermediates
Inventors:
Teodor Lukac, Milan Soukup, Erich Widmer
Patented Case
View Patent ↗
Granted: Oct 20, 1987
Filed: Mar 12, 1984
Inventors
Teodor Lukac
Milan Soukup
Erich Widmer
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.