Granted Patent
Utility
US 6,489,392 · App. 09/623,755
Foamed resin adhesive and the use thereof of glueing wood based panels and boards
Inventors:
Esa Lappalainen, Niko Musakka
Patented Case
View Patent ↗
Granted: Dec 3, 2002
Filed: Sep 8, 2000
Inventors
Esa Lappalainen
Niko Musakka
Assignee (at issue)
Dynea Chemicals Oy
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.