Granted Patent
Utility
US 5,240,790 · App. 08/029,082
Lithium-based polymer electrolyte electrochemical cell
Inventors:
David Chua, Hsiu-Ping Lin
Patented Case
View Patent ↗
Granted: Aug 31, 1993
Filed: Mar 10, 1993
Inventors
David Chua
Hsiu-Ping Lin
Assignee (at issue)
Alliant Techsystems 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.