Granted Patent
Utility
US 4,535,112 · App. 06/534,375
Cation exchange electrolytic cell membranes and method for making and repairing
Inventors:
G. Howard McCain, Leo L. Benezra, Craig Edward Finch
Patented Case
View Patent ↗
Granted: Aug 13, 1985
Filed: Sep 21, 1983
Inventors
G. Howard McCain
Leo L. Benezra
Craig Edward Finch
Assignee (at issue)
Eltech Systems 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.