Granted Patent
Utility
US 4,591,812 · App. 06/443,833
Coplanar waveguide quadrature hybrid having symmetrical coupling conductors for eliminating spurious modes
Inventors:
Ronald E. Stegens, Gary G. Hawisher
Patented Case
View Patent ↗
Granted: May 27, 1986
Filed: Nov 22, 1982
Inventors
Ronald E. Stegens
Gary G. Hawisher
Assignee (at issue)
Communications Satellite 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.