Granted Patent
Utility
US 4,567,331 · App. 06/564,637
Electronic hybrid having synthesized impedance circuitry
Inventor:
Philip T. Martin
Patented Case
View Patent ↗
Granted: Jan 28, 1986
Filed: Dec 22, 1983
Inventor
Philip T. Martin
Assignee (at issue)
ITT 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.