Granted Patent
Utility
US 4,894,281 · App. 07/199,956
Fiber-reinforced polymer molded body
Inventors:
Kazuo Yagi, Hitoshi Mantoku
Patented Case
View Patent ↗
Granted: Jan 16, 1990
Filed: May 27, 1988
Inventors
Kazuo Yagi
Hitoshi Mantoku
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.