Granted Patent
Utility
US 5,703,617 · App. 08/240,026
Signal driver circuit for liquid crystal displays
Inventors:
Michael Callahan, Christopher A. Ludden
Patented Case
View Patent ↗
Granted: Dec 30, 1997
Filed: May 9, 1994
Inventors
Michael Callahan
Christopher A. Ludden
Assignee (at issue)
Crystal Semiconductor Corp.
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.