Granted Patent
Utility
US 5,146,193 · App. 07/661,025
Monolithic ceramic filter or duplexer having surface mount corrections and transmission zeroes
Inventor:
Raymond L. Sokola
Patented Case
View Patent ↗
Granted: Sep 8, 1992
Filed: Feb 25, 1991
Inventor
Raymond L. Sokola
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.