Granted Patent
Utility
US 4,375,394 · App. 06/356,992
Electrolytic process for the preparation of ethylene glycol and glycerine
Inventor:
Thomas J. Devon
Patented Case
View Patent ↗
Granted: Mar 1, 1983
Filed: Mar 11, 1982
Inventor
Thomas J. Devon
Assignee (at issue)
EASTMAN KODAK 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.