Granted Patent
Utility
US 5,796,459 · App. 08/693,089
Bistable nematic liquid crystal device with bigrating alignment layers and twist
Inventors:
Guy Peter Bryan-Brown, Damien G. McDonnell, Michael John Towler, Martin S. Bancroft
Patented Case
View Patent ↗
Granted: Aug 18, 1998
Filed: Sep 20, 1996
Inventors
Guy Peter Bryan-Brown
Damien G. McDonnell
Michael John Towler
Martin S. Bancroft
Assignee (at issue)
The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
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.