Granted Patent
Utility
US 5,266,909 · App. 07/925,028
Waveguide circulator
Inventor:
Paul Wolfert
Patented Case
View Patent ↗
Granted: Nov 30, 1993
Filed: Aug 5, 1992
Inventor
Paul Wolfert
Assignee (at issue)
HARRIS CORPORATION
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.