Granted Patent
Utility
US 5,898,408 · App. 08/740,204
Window mounted mobile antenna system using annular ring aperture coupling
Inventor:
Xin Du
Patented Case
View Patent ↗
Granted: Apr 27, 1999
Filed: Oct 24, 1996
Inventor
Xin Du
Assignee (at issue)
Larsen Electronics, Inc.
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.