Granted Patent
Utility
US 4,868,652 · App. 06/292,744
Head of display arrangements
Inventor:
Martin G. Nutton
Patented Case
View Patent ↗
Granted: Sep 19, 1989
Filed: Aug 14, 1981
Inventor
Martin G. Nutton
Assignee (at issue)
Elliott Brothers (London) 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.