Granted Patent
Utility
US 6,489,406 · App. 09/806,337
Unsaturated polyester resin and the use of it
Inventors:
Paul Mahbub, Karri Airola, Eija Valtonen
Patented Case
View Patent ↗
Granted: Dec 3, 2002
Filed: Mar 29, 2001
Inventors
Paul Mahbub
Karri Airola
Eija Valtonen
Assignee (at issue)
Ashland, Inc.
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.