Granted Patent
Utility
US 5,745,075 · App. 08/658,484
Multi-tone DGPS beacon transmitter and receiver
Inventors:
Per K. Enge, David W. Young
Patented Case
View Patent ↗
Granted: Apr 28, 1998
Filed: Jun 5, 1996
Inventors
Per K. Enge
David W. Young
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.