Granted Patent
Utility
US 4,311,682 · App. 06/183,274
Process for preparing a graphite product
Inventors:
Takane Miyazaki, Takeshi Ikeda
Patented Case
View Patent ↗
Granted: Jan 19, 1982
Filed: Sep 2, 1980
Inventors
Takane Miyazaki
Takeshi Ikeda
Assignee (at issue)
Mitsubishi Chemical 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.