Granted Patent
Utility
US 4,433,912 · App. 06/341,525
Method and a circuit for determining a contour in an image
Inventor:
Robert M. Schwartz
Patented Case
View Patent ↗
Granted: Feb 28, 1984
Filed: Jan 21, 1982
Inventor
Robert M. Schwartz
Assignee (at issue)
Dr. Ing. Rudolf Hell GmbH
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.