Granted Patent
Utility
US 4,386,987 · App. 06/277,951
Electrolytic cell membrane/SPE formation by solution coating
Inventors:
Michael J. Covitch, Mark Smith, Leo L. Benezra
Patented Case
View Patent ↗
Granted: Jun 7, 1983
Filed: Jun 26, 1981
Inventors
Michael J. Covitch
Mark Smith
Leo L. Benezra
Assignee (at issue)
Diamond Shamrock 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.