Granted Patent
Utility
US 5,016,991 · App. 07/329,057
Flexible, solid electrolyte useful in electrochromic devices
Inventor:
Claude F. Mason
Patented Case
View Patent ↗
Granted: May 21, 1991
Filed: Mar 27, 1989
Inventor
Claude F. Mason
Assignee (at issue)
Ford Motor Company
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.