Granted Patent
Utility
US 5,068,427 · App. 07/438,389
Process for the preparation of alkane- and arenesulfonamides
Inventors:
Stanley R. Sandler, Steven G. Schon, David M. Gardner
Patented Case
View Patent ↗
Granted: Nov 26, 1991
Filed: Nov 16, 1989
Inventors
Stanley R. Sandler
Steven G. Schon
David M. Gardner
Assignee (at issue)
Atochem North America, Inc.
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.