Granted Patent
Utility
US 4,056,448 · App. 05/751,644
Process for brine membrane cell operation with external caustic and NaCl concentration control
Inventors:
Andrew D. Babinsky, Ronald L. Dotson
Patented Case
View Patent ↗
Granted: Nov 1, 1977
Filed: Dec 17, 1976
Inventors
Andrew D. Babinsky
Ronald L. Dotson
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.