Granted Patent
Utility
US 5,642,449 · App. 08/320,159
Fibre optic plate display
Inventor:
Nicholas John Phillips
Patented Case
View Patent ↗
Granted: Jun 24, 1997
Filed: Oct 7, 1994
Inventor
Nicholas John Phillips
Assignees (at issue)
Nashua Corporation
Nashua Photo 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.