Granted Patent
Utility
US 4,373,953 · App. 06/251,678
Surface-coating compositions containing polyvalent metal salts of hydroxybenzoic acid esters
Inventors:
Adolph J. Deinet, William B. Woods
Patented Case
View Patent ↗
Granted: Feb 15, 1983
Filed: Apr 6, 1981
Inventors
Adolph J. Deinet
William B. Woods
Assignee (at issue)
Tenneco Chemicals, 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.