Granted Patent
Utility
US 4,891,248 · App. 07/310,185
Catalyst-containing coating to promote rapid curing of polyurethane lacquers
Inventor:
Wayne A. Kraus
Patented Case
View Patent ↗
Granted: Jan 2, 1990
Filed: Feb 13, 1989
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.