Granted Patent
Utility
US 5,523,766 · App. 08/148,740
Apparatus for maintaining antenna polarization in portable communication devices
Inventor:
Vinko Erceg
Patented Case
View Patent ↗
Granted: Jun 4, 1996
Filed: Nov 5, 1993
Inventor
Vinko Erceg
Assignee (at issue)
AT&T CORP.
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.