Granted Patent
Utility
US 5,314,949 · App. 08/028,366
Polycarbonate resin composition
Inventors:
Shiro Kozakura, Shigeki Kuze, Kenji Tanaka
Patented Case
View Patent ↗
Granted: May 24, 1994
Filed: Mar 9, 1993
Inventors
Shiro Kozakura
Shigeki Kuze
Kenji Tanaka
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.