Granted Patent
Utility
US 4,949,046 · App. 07/210,166
Battery state of charge indicator
Inventor:
George Reginald Seyfang
Patented Case
View Patent ↗
Granted: Aug 14, 1990
Filed: Jun 21, 1988
Inventor
George Reginald Seyfang
Assignee (at issue)
British Aerospace Public Limited 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.