Granted Patent
Utility
US 5,512,866 · App. 08/235,588
Ceramic duplex filter
Inventors:
Reddy Vangala, Truc Hoang
Patented Case
View Patent ↗
Granted: Apr 30, 1996
Filed: Apr 29, 1994
Inventors
Reddy Vangala
Truc Hoang
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.