Granted Patent
Utility
US 5,283,129 · App. 07/964,384
Light weight paper stock
Inventors:
Frederick J. Renk, Carolyn K. Attenborough, Frederick C. Oettinger, Michael S. Handzel
Patented Case
View Patent ↗
Granted: Feb 1, 1994
Filed: Oct 21, 1992
Inventors
Frederick J. Renk
Carolyn K. Attenborough
Frederick C. Oettinger
Michael S. Handzel
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.