Granted Patent
Utility
US 4,621,245 · App. 06/608,329
Intermediate frequency filter for a DBS receiver
Inventors:
Pierre Dobrovolny, Dominic J. Nicoletto
Patented Case
View Patent ↗
Granted: Nov 4, 1986
Filed: May 8, 1984
Inventors
Pierre Dobrovolny
Dominic J. Nicoletto
Assignee (at issue)
Zenith Electronics LLC
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.