Granted Patent
Utility
US 4,320,401 · App. 06/121,885
Broadband microstrip antenna with automatically progressively shortened resonant dimensions with respect to increasing frequency of operation
Inventor:
Frank J. Schiavone
Patented Case
View Patent ↗
Granted: Mar 16, 1982
Filed: Feb 15, 1980
Inventor
Frank J. Schiavone
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.