Granted Patent
Utility
US 5,624,996 · App. 08/455,257
Dispersion of fine particles of modified polyethylene and process for preparation thereof
Inventors:
Akio Morinaga, Takeo Kigami, Kunihiko Yorihiro, Toshihiko Okada
Patented Case
View Patent ↗
Granted: Apr 29, 1997
Filed: May 31, 1995
Inventors
Akio Morinaga
Takeo Kigami
Kunihiko Yorihiro
Toshihiko Okada
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.