Granted Patent
Utility
US 6,706,741 · App. 10/221,963
Acetylcholinesterase inhibitors containing 1-benzyl-pyridinium salts
Inventors:
Yoichi Iimura, Takashi Kosasa
Patented Case
View Patent ↗
Granted: Mar 16, 2004
Filed: Sep 18, 2002
Inventors
Yoichi Iimura
Takashi Kosasa
Assignee (at issue)
Eisai 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.