Granted Patent
Utility
US 5,719,587 · App. 08/710,202
Dual frequency vertical antenna
Inventor:
Eric B. Rodal
Patented Case
View Patent ↗
Granted: Feb 17, 1998
Filed: Sep 13, 1996
Inventor
Eric B. Rodal
Assignee (at issue)
Trimble Navigation Limited
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.