Granted Patent
Utility
US 6,320,053 · App. 09/564,273
Preparation of heteroarylcarboxamides
Inventors:
Marcus Knell, Monika Brink, Jan Hendrik Wevers, Willi Heinz
Patented Case
View Patent ↗
Granted: Nov 20, 2001
Filed: May 4, 2000
Inventors
Marcus Knell
Monika Brink
Jan Hendrik Wevers
Willi Heinz
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.