Granted Patent
Utility
US 4,655,550 · App. 06/663,249
Ferro-electric liquid crystal display with steady state voltage on front electrode
Inventors:
William Crossland, Peter J. Ayliffe
Patented Case
View Patent ↗
Granted: Apr 7, 1987
Filed: Oct 22, 1984
Inventors
William Crossland
Peter J. Ayliffe
Assignee (at issue)
International Standard Electric Corporation
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.