Granted Patent
Utility
US 5,278,214 · App. 07/809,535
Polyolefin resin composition
Inventors:
Satoru Moriya, Akio Ishimoto, Mamoru Takahashi
Patented Case
View Patent ↗
Granted: Jan 11, 1994
Filed: Jan 29, 1992
Inventors
Satoru Moriya
Akio Ishimoto
Mamoru Takahashi
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.