Granted Patent
Utility
US 4,575,751 · App. 06/551,920
Method and subsystem for plotting the perimeter of an object
Inventor:
Robert A. Duschl
Patented Case
View Patent ↗
Granted: Mar 11, 1986
Filed: Nov 15, 1983
Inventor
Robert A. Duschl
Assignee (at issue)
RCA Corporation
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.