Granted Patent
Utility
US 5,968,622 · App. 08/871,069
Cylindrical substrate for electrophotography
Inventors:
Noriaki Kawata, Kiyoshi Nikima
Patented Case
View Patent ↗
Granted: Oct 19, 1999
Filed: Jun 9, 1997
Inventors
Noriaki Kawata
Kiyoshi Nikima
Assignee (at issue)
FUJI ELECTRIC 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.