Granted Patent
Utility
US 6,069,274 · App. 09/005,871
Process for the preparation of chloro-benzoylchlorides
Inventors:
Laurens Wilhelm van den Akker, Monika Brink
Patented Case
View Patent ↗
Granted: May 30, 2000
Filed: Jan 12, 1998
Inventors
Laurens Wilhelm van den Akker
Monika Brink
Assignee (at issue)
American Cyanamid Company
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.