Granted Patent
Utility
US 5,175,517 · App. 07/726,718
Lumped element realization of ring hybrids including .pi. circuit and tank circuit means
Inventors:
Michael Dydyk, Ronald F. Keilmeyer, Jr., John K. Lauchner
Patented Case
View Patent ↗
Granted: Dec 29, 1992
Filed: Jul 1, 1991
Inventors
Michael Dydyk
Ronald F. Keilmeyer, Jr.
John K. Lauchner
Assignee (at issue)
Motorola, 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.