Granted Patent
Utility
US 4,833,011 · App. 07/093,773
Synthetic pulp and absorbent comprising the same
Inventor:
Koji Horimoto
Patented Case
View Patent ↗
Granted: May 23, 1989
Filed: Sep 8, 1987
Inventor
Koji Horimoto
Assignee (at issue)
Mitsui Petrochemical Industries, Ltd.
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.