Granted Patent
Utility
US 4,408,165 · App. 06/321,831
Digital phase detector
Inventor:
Reinhold Braun
Patented Case
View Patent ↗
Granted: Oct 4, 1983
Filed: Nov 16, 1981
Inventor
Reinhold Braun
Assignee (at issue)
International Standard Electric 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.