Granted Patent
Utility
US 4,234,953 · App. 05/967,192
Error density detector
Inventor:
Ralph Kline
Patented Case
View Patent ↗
Granted: Nov 18, 1980
Filed: Dec 7, 1978
Inventor
Ralph Kline
Assignee (at issue)
GTE Automatic Electric Laboratories, Incorporated
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.