Granted Patent
Utility
US 5,446,923 · App. 08/205,169
Mixer using fundamental frequency or second or third harmonic frequencies of a local oscillator for maximized resultant frequency mixer product
Inventors:
Glen D. Martinson, Marian Mark Burin
Patented Case
View Patent ↗
Granted: Aug 29, 1995
Filed: Mar 3, 1994
Inventors
Glen D. Martinson
Marian Mark Burin
Assignee (at issue)
Beltronics 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.