Granted Patent
Utility
US 4,626,894 · App. 06/657,592
Signal filtering system having adaptively cascaded filter stages for developing a variable bandwidth frequency characteristic
Inventors:
Leopold A. Harwood, Robert A. Wargo
Patented Case
View Patent ↗
Granted: Dec 2, 1986
Filed: Oct 4, 1984
Inventors
Leopold A. Harwood
Robert A. Wargo
Assignee (at issue)
RCA 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.