Granted Patent
Utility
US 4,466,896 · App. 06/518,335
Ethylenediamine triacetic acid siloxane stabilizers for inorganic silicates in antifreeze/coolant formulations
Inventor:
Jerome W. Darden
Patented Case
View Patent ↗
Granted: Aug 21, 1984
Filed: Jul 29, 1983
Inventor
Jerome W. Darden
Assignee (at issue)
Texaco Inc.
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.