Granted Patent
Utility
US 5,064,407 · App. 07/492,711
Method of manufacturing a cellulose absorbent product
Inventor:
Norman A. Peiffer
Patented Case
View Patent ↗
Granted: Nov 12, 1991
Filed: Mar 13, 1990
Inventor
Norman A. Peiffer
Assignee (at issue)
The Andersons 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.