Granted Patent
Utility
US 4,655,877 · App. 06/814,165
Absorbent web structure
Inventors:
Koji Horimoto, Yoshinori Morita
Patented Case
View Patent ↗
Granted: Apr 7, 1987
Filed: Dec 23, 1985
Inventors
Koji Horimoto
Yoshinori Morita
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.