Granted Patent
Utility
US 6,794,476 · App. 10/070,442
Propylene homopolymer and propylene copolymer
Inventors:
Shuji Machida, Takashi Saeki, Tomio Tatsumi
Patented Case
View Patent ↗
Granted: Sep 21, 2004
Filed: Mar 19, 2002
Inventors
Shuji Machida
Takashi Saeki
Tomio Tatsumi
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.