Granted Patent
Utility
US 4,552,857 · App. 06/365,185
Cathode coating with hydrogen-evolution catalyst and semi-conducting polymer
Inventors:
Michael Katz, Jean M. Hinden, Jurgen Gauger
Patented Case
View Patent ↗
Granted: Nov 12, 1985
Filed: Apr 5, 1982
Inventors
Michael Katz
Jean M. Hinden
Jurgen Gauger
Assignee (at issue)
Eltech Systems Corporation
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.