Granted Patent
Utility
US 4,922,016 · App. 07/385,583
Process for the preparation of N-(sulfonylmethyl) formamide compounds
Inventor:
Nicolaas Cornelis Barendse
Patented Case
View Patent ↗
Granted: May 1, 1990
Filed: Jul 26, 1989
Inventor
Nicolaas Cornelis Barendse
Assignee (at issue)
Gist-Brocades N.V.
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.