Granted Patent
Utility
US 4,680,246 · App. 06/873,451
Method for producing an electrophotographic element
Inventors:
Motohisa Aoki, Hironobu Iwanaga
Patented Case
View Patent ↗
Granted: Jul 14, 1987
Filed: Jun 6, 1986
Inventors
Motohisa Aoki
Hironobu Iwanaga
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.