Granted Patent
Utility
US 5,264,215 · App. 07/599,827
Bone cement composition, cured product thereof, implant material and process for the preparation of the same
Inventors:
Nobuo Nakabayashi, Kazuhiko Ishihara, Takashi Yamamoto
Patented Case
View Patent ↗
Granted: Nov 23, 1993
Filed: Oct 19, 1990
Inventors
Nobuo Nakabayashi
Kazuhiko Ishihara
Takashi Yamamoto
Assignees (at issue)
Nobuo Nakabayashi
Mitsui Petrochemical Industries, Ltd.
Asahi Kogaku Kogyo Kabushiki Kaisha
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.