Granted Patent
Utility
US 4,910,340 · App. 07/133,119
Catalytic method for preparing symmetrical and nonsymmetrical dialkylhydroxylamines
Inventors:
Nelson S. Marans, Stephen G. Harsy, Herbert S. Harris
Patented Case
View Patent ↗
Granted: Mar 20, 1990
Filed: Dec 14, 1987
Inventors
Nelson S. Marans
Stephen G. Harsy
Herbert S. Harris
Assignee (at issue)
W.R. Grace & Co. Conn.
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.