Granted Patent
Utility
US 4,848,877 · App. 07/102,407
Liquid crystal devices and systems using such devices
Inventor:
Peter J. Miller
Patented Case
View Patent ↗
Granted: Jul 18, 1989
Filed: Sep 29, 1987
Inventor
Peter J. Miller
Assignee (at issue)
Cambridge Research & Instrumentation, Inc.
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.