Granted Patent
Utility
US 5,166,791 · App. 07/761,674
Video picture and waveform display with line selection
Inventor:
Douglas C. Crawford
Patented Case
View Patent ↗
Granted: Nov 24, 1992
Filed: Sep 18, 1991
Inventor
Douglas C. Crawford
Assignee (at issue)
Videotek, Inc.
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.