Granted Patent
Utility
US 5,777,056 · App. 08/755,151
Polyolefinic resin and a resin composition comprising said resin
Inventors:
Masayuki Tsuruoka, Akira Tanaka, Masaru Nakagawa
Patented Case
View Patent ↗
Granted: Jul 7, 1998
Filed: Nov 25, 1996
Inventors
Masayuki Tsuruoka
Akira Tanaka
Masaru Nakagawa
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.