Granted Patent
Utility
US 5,128,663 · App. 07/337,759
Display device incorporating separately operable pixels and method for operating same
Inventor:
Ian Coulson
Patented Case
View Patent ↗
Granted: Jul 7, 1992
Filed: Apr 13, 1989
Inventor
Ian Coulson
Assignee (at issue)
Thorn EMI 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.