Granted Patent
Utility
US 5,189,406 · App. 07/754,186
Display device
Inventors:
Brian J. Humphries, Colin M. Waters, Steven D. Bull, Christopher J. Morris
Patented Case
View Patent ↗
Granted: Feb 23, 1993
Filed: Aug 28, 1991
Inventors
Brian J. Humphries
Colin M. Waters
Steven D. Bull
Christopher J. Morris
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.