Granted Patent
Utility
US 6,081,172 · App. 09/242,874
Surface wave filter for asymmetrical/symmetrical and symmetrical/symmetrical operating mode
Inventors:
Georg Strauss, Josef Bauregger
Patented Case
View Patent ↗
Granted: Jun 27, 2000
Filed: Feb 25, 1999
Inventors
Georg Strauss
Josef Bauregger
Assignee (at issue)
Siemens Matsushita Components GmbH & Co. KG
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.