Granted Patent
Utility
US 4,752,549 · App. 06/924,282
Electrophotographic photoreceptor having a protective layer
Inventors:
Shigenori Otsuka, Kohki Furuya, Mamoru Nozomi
Patented Case
View Patent ↗
Granted: Jun 21, 1988
Filed: Oct 27, 1986
Inventors
Shigenori Otsuka
Kohki Furuya
Mamoru Nozomi
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.