Granted Patent
Utility
US 4,565,757 · App. 06/562,696
Photoconductive compositions sensitive to both laser light and tungsten halide light
Inventors:
Anthony J. Chalk, Graham Charnock, Allen P. Gates, David E. Murray, Ian Smith
Patented Case
View Patent ↗
Granted: Jan 21, 1986
Filed: Dec 15, 1983
Inventors
Anthony J. Chalk
Graham Charnock
Allen P. Gates
David E. Murray
Ian Smith
Assignee (at issue)
Vickers PLC
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.