Granted Patent
Utility
US 6,146,780 · App. 08/787,271
Bipolar separator plates for electrochemical cell stacks
Inventors:
Alan J. Cisar, Oliver J. Murphy
Patented Case
View Patent ↗
Granted: Nov 14, 2000
Filed: Jan 24, 1997
Inventors
Alan J. Cisar
Oliver J. Murphy
Assignee (at issue)
Lynntech, 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.