Granted Patent
Utility
US 4,682,213 · App. 06/791,145
Magnitude independent hanging dot detector
Inventor:
Robert A. Wargo
Patented Case
View Patent ↗
Granted: Jul 21, 1987
Filed: Oct 24, 1985
Inventor
Robert A. Wargo
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.