Granted Patent
Utility
US 4,325,082 · App. 06/176,737
Digital measurement system for automatically focusing a television camera
Inventor:
Karl H. Griesshaber
Patented Case
View Patent ↗
Granted: Apr 13, 1982
Filed: Aug 11, 1980
Inventor
Karl H. Griesshaber
Assignee (at issue)
Ampex 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.