Granted Patent
Utility
US 5,266,421 · App. 07/881,932
Enhanced membrane-electrode interface
Inventors:
Carl W. Townsend, Arthur B. Naselow, Andrew Kindler
Patented Case
View Patent ↗
Granted: Nov 30, 1993
Filed: May 12, 1992
Inventors
Carl W. Townsend
Arthur B. Naselow
Andrew Kindler
Assignee (at issue)
Hughes Aircraft Company
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.