Granted Patent
Utility
US 4,787,964 · App. 07/048,386
Gas diffusion electrodes, electrochemical cells and methods exhibiting improved voltage performance
Inventors:
Arnold Z. Gordon, Ernest B. Yeager, Donald A. Tryk, M. Sohrab Hossain
Patented Case
View Patent ↗
Granted: Nov 29, 1988
Filed: May 11, 1987
Inventors
Arnold Z. Gordon
Ernest B. Yeager
Donald A. Tryk
M. Sohrab Hossain
Assignee (at issue)
Caterpillar Industrial 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.