Granted Patent
Utility
US 5,018,834 · App. 07/432,577
Addressing scheme for multiplexed ferro-electric liquid crystal
Inventor:
Martin J. Birch
Patented Case
View Patent ↗
Granted: May 28, 1991
Filed: Nov 6, 1989
Inventor
Martin J. Birch
Assignee (at issue)
STC 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.