Granted Patent
Utility
US 4,810,445 · App. 06/912,639
Process for making pressboard from poly-coated paper
Inventors:
Vernon L. Lamb, Sr., Roger Bodén
Patented Case
View Patent ↗
Granted: Mar 7, 1989
Filed: Sep 26, 1986
Inventors
Vernon L. Lamb, Sr.
Roger Bodén
Assignee (at issue)
Fortifiber Corporation
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.