Granted Patent
Utility
US 5,523,358 · App. 08/235,419
Modified polyolefin particles and process for preparation thereof
Inventors:
Toshiyuki Hirose, Hajime Inagaki, Mamoru Kioka, Akinori Toyota, Norio Kashiwa
Patented Case
View Patent ↗
Granted: Jun 4, 1996
Filed: Apr 22, 1994
Inventors
Toshiyuki Hirose
Hajime Inagaki
Mamoru Kioka
Akinori Toyota
Norio Kashiwa
Assignee (at issue)
Mitsui Petrochemical Industries, 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.