Granted Patent
Utility
US 5,753,074 · App. 08/697,271
Method of washing a thin mat of cellulosic pulp
Inventor:
Roger P. Hoffman
Patented Case
View Patent ↗
Granted: May 19, 1998
Filed: Aug 21, 1996
Inventor
Roger P. Hoffman
Assignee (at issue)
Hoffman Environmental System, Inc.
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.