Granted Patent
Utility
US 6,099,716 · App. 09/084,662
Electrochemical cell frame
Inventors:
Trent M. Molter, Lawrence Moulthrop, Robert J. Friedland
Patented Case
View Patent ↗
Granted: Aug 8, 2000
Filed: May 26, 1998
Inventors
Trent M. Molter
Lawrence Moulthrop
Robert J. Friedland
Assignee (at issue)
PROTON ENERGY SYSTEMS, 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.