Granted Patent
Utility
US 5,227,507 · App. 07/498,061
Ethynylcyclohexene compounds and processes for manufacture thereof
Inventors:
Teodor Lukac, Milan Soukup
Patented Case
View Patent ↗
Granted: Jul 13, 1993
Filed: Mar 23, 1990
Inventors
Teodor Lukac
Milan Soukup
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.