Granted Patent
Utility
US 5,236,475 · App. 07/978,620
Papermaking apparatus including baffles
Inventor:
David A. Evens
Patented Case
View Patent ↗
Granted: Aug 17, 1993
Filed: Nov 19, 1992
Inventor
David A. Evens
Assignee (at issue)
Lake Superior Paper Industries
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.