Granted Patent
Utility
US 6,576,721 · App. 10/182,703
Process for producing low polymer of ethylene
Inventors:
Ryoichi Kobayashi, Shigeki Kura
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: Aug 7, 2002
Inventors
Ryoichi Kobayashi
Shigeki Kura
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.