Granted Patent
Utility
US 6,201,073 · App. 08/978,203
Tertiary carboxyl-functional polyester derived from cyclohexane dicarboxylic acid and dihydroxymono carboxylic acid
Inventors:
Ronald Petrus Clemens Van Gaalen, Petrus G. Kooijmans, Leo Wim Van Noort
Patented Case
View Patent ↗
Granted: Mar 13, 2001
Filed: Nov 25, 1997
Inventors
Ronald Petrus Clemens Van Gaalen
Petrus G. Kooijmans
Leo Wim Van Noort
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.