Granted Patent
Utility
US 5,144,075 · App. 07/642,619
Process for the preparation of N,N-dihydrocarbylhydroxylamines
Inventor:
Joseph Suhadolnik
Patented Case
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Granted: Sep 1, 1992
Filed: Jan 17, 1991
Inventor
Joseph Suhadolnik
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.