Granted Patent
Utility
US 5,437,918 · App. 08/145,621
Degradable non-woven fabric and preparation process thereof
Inventors:
Keiko Taniguchi, Masahiro Washino, Shinobu Moriya, Hosei Shinoda, Masami Ohtaguro, Akihiro Funae, Shigeru Iimuro
Patented Case
View Patent ↗
Granted: Aug 1, 1995
Filed: Nov 4, 1993
Inventors
Keiko Taniguchi
Masahiro Washino
Shinobu Moriya
Hosei Shinoda
Masami Ohtaguro
Akihiro Funae
Shigeru Iimuro
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.