Granted Patent
Utility
US 4,685,144 · App. 06/665,667
Image processing system with transformation detection
Inventors:
David L. McCubbrey, Theron Friedman
Patented Case
View Patent ↗
Granted: Aug 4, 1987
Filed: Oct 29, 1984
Inventors
David L. McCubbrey
Theron Friedman
Assignee (at issue)
Environmental Research Institute
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.