Granted Patent
Utility
US 4,229,745 · App. 06/034,399
Edge slotted waveguide antenna array with selectable radiation direction
Inventor:
Bradford E. Kruger
Patented Case
View Patent ↗
Granted: Oct 21, 1980
Filed: Apr 30, 1979
Inventor
Bradford E. Kruger
Assignee (at issue)
International Telephone and Telegraph 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.