Granted Patent
Utility
US 4,944,803 · App. 07/172,615
Catalyst-containing coating to promote rapid curing polyurethane lacquers
Inventor:
Wayne A. Kraus
Patented Case
View Patent ↗
Granted: Jul 31, 1990
Filed: Mar 24, 1988
Inventor
Wayne A. Kraus
Assignee (at issue)
HERCULES LLC
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.