Granted Patent
Utility
US 5,505,819 · App. 08/220,563
Neutral papermaking
Inventors:
James A. De Witt, Donald T. Eadie, Gordon R. Hayes, Robert E. Monahan
Patented Case
View Patent ↗
Granted: Apr 9, 1996
Filed: Mar 31, 1994
Inventors
James A. De Witt
Donald T. Eadie
Gordon R. Hayes
Robert E. Monahan
Assignee (at issue)
MacMillan Bloedel 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.