Granted Patent
Utility
US 4,455,184 · App. 06/467,930
Production of laminate polyester and paperboard
Inventor:
Kenneth P. Thompson
Patented Case
View Patent ↗
Granted: Jun 19, 1984
Filed: Feb 18, 1983
Inventor
Kenneth P. Thompson
Assignee (at issue)
Champion International Corporation Limited
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.