Granted Patent
Utility
US 5,368,940 · App. 08/124,358
Carbon composite material reinforced with carbon fiber and inorganic fiber
Inventors:
Makoto Takei, Isao Kinugawa, Mamoru TAMURA, Seiichi Tashiro
Patented Case
View Patent ↗
Granted: Nov 29, 1994
Filed: Sep 20, 1993
Inventors
Makoto Takei
Isao Kinugawa
Mamoru TAMURA
Seiichi Tashiro
Assignee (at issue)
OHWADA CARBON INDUSTRIAL CO., 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.