Granted Patent
Utility
US 5,656,978 · App. 08/570,444
Control circuit and method for direct current controlled attenuator
Inventors:
Daniel Bianu, Charles H. Gall
Patented Case
View Patent ↗
Granted: Aug 12, 1997
Filed: Dec 11, 1995
Inventors
Daniel Bianu
Charles H. Gall
Assignee (at issue)
Harmonic Lightwaves
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.