Granted Patent
Utility
US 5,290,469 · App. 07/734,722
Glycol-based polycarboxylate-containing antifreeze/coolant formulations for resisting cavitation erosion-corrosion on aluminum
Inventors:
David E. Turcotte, John J. Conville, James T. Lyon, Stanley T. Hirozawa, Shrikant V. DeSai
Patented Case
View Patent ↗
Granted: Mar 1, 1994
Filed: Jul 23, 1991
Inventors
David E. Turcotte
John J. Conville
James T. Lyon
Stanley T. Hirozawa
Shrikant V. DeSai
Assignee (at issue)
BASF SE
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.