Granted Patent
Utility
US 4,893,181 · App. 07/252,405
Interactive image modification
Inventor:
Andrew James Victor Yeomans
Patented Case
View Patent ↗
Granted: Jan 9, 1990
Filed: Oct 3, 1988
Inventor
Andrew James Victor Yeomans
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.