Granted Patent
Utility
US 4,785,271 · App. 07/124,639
Stripline filter with improved resonator structure
Inventor:
Robert J. Higgins, Jr.
Patented Case
View Patent ↗
Granted: Nov 15, 1988
Filed: Nov 24, 1987
Inventor
Robert J. Higgins, Jr.
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.