Granted Patent
Utility
US 5,085,961 · App. 07/632,659
Multilayer organic photoconductor
Inventors:
Peter Gregory, Raymond L. White
Patented Case
View Patent ↗
Granted: Feb 4, 1992
Filed: Dec 27, 1990
Inventors
Peter Gregory
Raymond L. White
Assignee (at issue)
IMPERIAL CHEMICAL INDUSTRIES LIMITED
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.