Granted Patent
Utility
US 4,396,480 · App. 06/345,144
Solid electrolyte sheet
Inventors:
Louis Hegedus, Christian B. Lundsager
Patented Case
View Patent ↗
Granted: Aug 2, 1983
Filed: Feb 2, 1982
Inventors
Louis Hegedus
Christian B. Lundsager
Assignee (at issue)
W. R. Grace & Co.
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.