Granted Patent
Utility
US 6,482,878 · App. 09/556,721
Polyurethane hotmelt adhesives with acrylic copolymers and thermoplastic resins
Inventor:
Wayne K. Chu
Patented Case
View Patent ↗
Granted: Nov 19, 2002
Filed: Apr 21, 2000
Inventor
Wayne K. Chu
Assignee (at issue)
National Starch and Chemical Investment Holding Copporation
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.