Granted Patent
Utility
US 4,617,592 · App. 06/473,400
Video retouching system
Inventor:
Lindsay W. MacDonald
Patented Case
View Patent ↗
Granted: Oct 14, 1986
Filed: Mar 8, 1983
Inventor
Lindsay W. MacDonald
Assignee (at issue)
Crosfield Electronics Limited
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.