Granted Patent
Utility
US 6,049,693 · App. 08/892,090
Upstream ingress noise blocking filter for cable television system
Inventors:
Paul Baran, George K. Bunya, F. Jud Heinzmann, Marshall H. Hollimon
Patented Case
View Patent ↗
Granted: Apr 11, 2000
Filed: Jul 14, 1997
Inventors
Paul Baran
George K. Bunya
F. Jud Heinzmann
Marshall H. Hollimon
Assignee (at issue)
COM21, Inc.
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.