Granted Patent
Utility
US 6,770,355 · App. 10/110,204
Polypropylene film and multilayered laminate
Inventors:
Yutaka Minami, Masami Kanamaru, Hideo Funabashi
Patented Case
View Patent ↗
Granted: Aug 3, 2004
Filed: Apr 17, 2002
Inventors
Yutaka Minami
Masami Kanamaru
Hideo Funabashi
Assignee (at issue)
Idemitsu Petrochemical Co., 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.