Granted Patent
Utility
US 4,454,541 · App. 06/388,038
Charge coupled device based blemish detection system and method
Inventor:
Robert A. Duschl
Patented Case
View Patent ↗
Granted: Jun 12, 1984
Filed: Jun 14, 1982
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.