Granted Patent
Utility
US 6,544,592 · App. 09/857,005
Aqueous dispersion of a polyurethane containing blocked reactive sites
Inventors:
Laurentius Cornelius Josephus Hesselmans, Johanna Antonia Maria Van Den Goorbergh
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: Aug 28, 2001
Inventors
Laurentius Cornelius Josephus Hesselmans
Johanna Antonia Maria Van Den Goorbergh
Assignee (at issue)
Stahl International B.V.
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.