Granted Patent
Utility
US 5,395,869 · App. 08/225,935
Thermally stabilized thermoplastic cycloolefin in resin compositions
Inventors:
Keiji Kawamoto, Tetsuji Kasai, Hideki Sakai
Patented Case
View Patent ↗
Granted: Mar 7, 1995
Filed: Apr 11, 1994
Inventors
Keiji Kawamoto
Tetsuji Kasai
Hideki Sakai
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.