Granted Patent
Utility
US 4,547,779 · App. 06/465,486
Annular slot antenna
Inventors:
Gary G. Sanford, Dean A. Paschen
Patented Case
View Patent ↗
Granted: Oct 15, 1985
Filed: Feb 10, 1983
Inventors
Gary G. Sanford
Dean A. Paschen
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.