Granted Patent
Utility
US 6,469,081 · App. 09/537,414
Styrene-based resin composition
Inventors:
Shinji Chino, Akihiko Okada, Nobuyuki Satoh
Patented Case
View Patent ↗
Granted: Oct 22, 2002
Filed: Mar 29, 2000
Inventors
Shinji Chino
Akihiko Okada
Nobuyuki Satoh
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.