Granted Patent
Utility
US 4,844,997 · App. 06/538,465
Electrochemical cell
Inventors:
Keith A. Klinedinst, William D. K. Clark
Patented Case
View Patent ↗
Granted: Jul 4, 1989
Filed: Oct 3, 1983
Inventors
Keith A. Klinedinst
William D. K. Clark
Assignee (at issue)
Whittaker Technical Products, 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.