Granted Patent
Utility
US 4,315,228 · App. 06/165,580
Multiple co-surface acoustic wave filters
Inventor:
Robert A. Moore
Patented Case
View Patent ↗
Granted: Feb 9, 1982
Filed: Jul 3, 1980
Inventor
Robert A. Moore
Assignee (at issue)
Westinghouse Electric Company LLC
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.