Granted Patent
Utility
US 4,847,625 · App. 07/156,259
Wideband, aperture-coupled microstrip antenna
Inventors:
Fred J. Dietrich, Chich-Hsing A. Tsao, Yeongming Hwang, Francis J. Kilburg
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: Feb 16, 1988
Inventors
Fred J. Dietrich
Chich-Hsing A. Tsao
Yeongming Hwang
Francis J. Kilburg
Assignee (at issue)
Ford Aerospace 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.