Granted Patent
Utility
US 4,396,470 · App. 06/349,194
Lithographic printing plates
Inventor:
Philip A. Atkinson
Patented Case
View Patent ↗
Granted: Aug 2, 1983
Filed: Feb 17, 1982
Inventor
Philip A. Atkinson
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.