Granted Patent
Utility
US 4,894,724 · App. 07/137,543
System and method for producing a flicker-free video image
Inventor:
Murray S. Welkowsky
Patented Case
View Patent ↗
Granted: Jan 16, 1990
Filed: Dec 23, 1987
Inventor
Murray S. Welkowsky
Assignee (at issue)
Hughes Aircraft Company
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.