Granted Patent
Utility
US 4,613,445 · App. 06/633,210
Organophosphate-containing antifreeze
Inventors:
John L. Haack, Paul H. Mohr
Patented Case
View Patent ↗
Granted: Sep 23, 1986
Filed: Jul 23, 1984
Inventors
John L. Haack
Paul H. Mohr
Assignee (at issue)
Union Carbide 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.