Granted Patent
Utility
US 6,667,673 · App. 10/049,954
Dual-mode surface wave filter with enhanced symmetry and optionally enhanced stop-band attenuation
Inventor:
Georg Strauss
Patented Case
View Patent ↗
Granted: Dec 23, 2003
Filed: Feb 19, 2002
Inventor
Georg Strauss
Assignee (at issue)
EPCOS AG
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.