Granted Patent
Utility
US 5,085,952 · App. 07/642,136
Solid state cell electrolyte
Inventor:
John M. North
Patented Case
View Patent ↗
Granted: Feb 4, 1992
Filed: Jan 15, 1991
Inventor
John M. North
Assignee (at issue)
Gould 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.