Granted Patent
Utility
US 5,379,011 · App. 07/965,468
Surface mount ceramic filter duplexer having reduced input/output coupling and adjustable high-side transmission zeroes
Inventors:
Raymond L. Sokola, Joseph Paul Krause
Patented Case
View Patent ↗
Granted: Jan 3, 1995
Filed: Oct 23, 1992
Inventors
Raymond L. Sokola
Joseph Paul Krause
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.