Granted Patent
Utility
US 4,271,294 · App. 06/129,876
Aminoalkoxy derivatives of aromatic ketones
Inventors:
Louis Felder, Rudolf Kirchmayr, Rinaldo Kusler
Patented Case
View Patent ↗
Granted: Jun 2, 1981
Filed: Mar 13, 1980
Inventors
Louis Felder
Rudolf Kirchmayr
Rinaldo Kusler
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.