Granted Patent
Utility
US 4,332,709 · App. 06/225,557
Water-thinnable binders and their preparation
Inventors:
Petrus G. Kooijmans, Wolfgang Kunze, Arend Noordam
Patented Case
View Patent ↗
Granted: Jun 1, 1982
Filed: Jan 16, 1981
Inventors
Petrus G. Kooijmans
Wolfgang Kunze
Arend Noordam
Assignee (at issue)
SHELL OIL COMPANY
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.