Granted Patent
Utility
US 6,404,307 · App. 09/723,857
Resonant cavity coupling mechanism
Inventor:
Torsten R. Wulff
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Nov 28, 2000
Inventor
Torsten R. Wulff
Assignee (at issue)
KATHREIN, INC., Scala Division
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.