Granted Patent
Utility
US 6,424,817 · App. 09/148,913
Dual-polarity low-noise block downconverter systems and methods
Inventors:
Ian Hadden, Bruce J. Buchan
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Sep 4, 1998
Inventors
Ian Hadden
Bruce J. Buchan
Assignee (at issue)
CALIFORNIA AMPLIFIER, 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.