Granted Patent
Utility
US 4,996,348 · App. 07/221,405
N-alkenoyl enamides, their preparation and the use thereof
Inventors:
Martin Kuhn, Philippe Ouziel
Patented Case
View Patent ↗
Granted: Feb 26, 1991
Filed: Jul 19, 1988
Inventors
Martin Kuhn
Philippe Ouziel
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.