Granted Patent
Utility
US 4,765,985 · App. 07/051,781
Devices and methods for treating memory impairment
Inventor:
Lewis J. Leeson
Patented Case
View Patent ↗
Granted: Aug 23, 1988
Filed: May 20, 1987
Inventor
Lewis J. Leeson
Assignee (at issue)
Ciba-Geigy
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.