Granted Patent
Utility
US 5,599,983 · App. 08/517,320
Preparation of alkanesulfonamides with low residual ammonium impurities
Inventors:
Gary S. Smith, Robert Cordova, Thomas H. Overgaard, Marc T. Budrick
Patented Case
View Patent ↗
Granted: Feb 4, 1997
Filed: Aug 21, 1995
Inventors
Gary S. Smith
Robert Cordova
Thomas H. Overgaard
Marc T. Budrick
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.