Granted Patent
Utility
US 4,324,909 · App. 06/169,535
Process for preparing glycols and glycol esters
Inventors:
David Horvitz, Thomas S. Brima
Patented Case
View Patent ↗
Granted: Apr 13, 1982
Filed: Jul 17, 1980
Inventors
David Horvitz
Thomas S. Brima
Assignee (at issue)
National Distillers and Chemical 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.