Granted Patent
Utility
US 4,242,685 · App. 06/034,135
Slotted cavity antenna
Inventor:
Gary G. Sanford
Patented Case
View Patent ↗
Granted: Dec 30, 1980
Filed: Apr 27, 1979
Inventor
Gary G. Sanford
Assignee (at issue)
BALL 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.