Granted Patent
Utility
US 5,684,439 · App. 08/541,749
Half wave ceramic filter with open circuit at both ends
Inventor:
Reddy Vangala
Patented Case
View Patent ↗
Granted: Nov 4, 1997
Filed: Oct 10, 1995
Inventor
Reddy Vangala
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.