Granted Patent
Utility
US 4,954,634 · App. 07/221,953
Process for the selective N-acylation of aminohydroxamic acid derivatives and starting materials used therein
Inventors:
Peter Heinrich, Theophile Moerker
Patented Case
View Patent ↗
Granted: Sep 4, 1990
Filed: Jul 20, 1988
Inventors
Peter Heinrich
Theophile Moerker
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.