Granted Patent
Utility
US 4,294,966 · App. 06/058,222
Process for inverting the configuration in optically active compounds
Inventor:
Janos Zergenyi
Patented Case
View Patent ↗
Granted: Oct 13, 1981
Filed: Jul 16, 1979
Inventor
Janos Zergenyi
Assignee (at issue)
Ciba-Geigy
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.