Granted Patent
Utility
US 5,085,895 · App. 07/555,670
Polyolefin resin composition
Inventors:
Tadashi Asanuma, Kazuhiko Yamamoto, Junko Ohnaka, Yoshiko Tokura
Patented Case
View Patent ↗
Granted: Feb 4, 1992
Filed: Jul 18, 1990
Inventors
Tadashi Asanuma
Kazuhiko Yamamoto
Junko Ohnaka
Yoshiko Tokura
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.