Granted Patent
Utility
US 6,317,178 · App. 09/564,373
Liquid crystal display device having active & passive cell wherein a heater is disposed inside the passive cell
Inventors:
Peter Brandt, Dietmar Tippl
Patented Case
View Patent ↗
Granted: Nov 13, 2001
Filed: May 2, 2000
Inventors
Peter Brandt
Dietmar Tippl
Assignee (at issue)
Mannesmann VDO AG
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.