Granted Patent
Utility
US 5,198,143 · App. 07/861,091
Composition for the treatment of overspray in paint spray booths containing secondary alcohol esters and surfactants
Inventors:
Edwin C. Zuerner, Robert A. Patzelt, Norman Foster
Patented Case
View Patent ↗
Granted: Mar 30, 1993
Filed: Mar 31, 1992
Inventors
Edwin C. Zuerner
Robert A. Patzelt
Norman Foster
Assignee (at issue)
Nortru, 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.