Granted Patent
Utility
US 5,232,971 · App. 07/850,819
Polyolefin resin composition
Inventors:
Manabu Nomura, Kouji Sato, Kaoru Wada
Patented Case
View Patent ↗
Granted: Aug 3, 1993
Filed: Mar 13, 1992
Inventors
Manabu Nomura
Kouji Sato
Kaoru Wada
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.