Granted Patent
Utility
US 4,554,056 · App. 06/724,403
Impregnation of nickel electrodes using electric pH control circuits
Inventor:
James C. Whitford
Patented Case
View Patent ↗
Granted: Nov 19, 1985
Filed: Apr 18, 1985
Inventor
James C. Whitford
Assignee (at issue)
Eagle-Picher Industries, 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.