Granted Patent
Utility
US 6,563,470 · App. 09/860,045
Dual band frequency polarizer using corrugated geometry profile
Inventors:
Makkalon Em, Charles W. Chandler, Louis C. Wilson
Patented Case
View Patent ↗
Granted: May 13, 2003
Filed: May 17, 2001
Inventors
Makkalon Em
Charles W. Chandler
Louis C. Wilson
Assignee (at issue)
NORTHROP GRUMMAN 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.