Granted Patent
Utility
US 6,587,789 · App. 09/989,625
Method and apparatus for locating mobile receivers using a wide area reference network for propagating ephemeris
Inventor:
Frank van Diggelen
Patented Case
View Patent ↗
Granted: Jul 1, 2003
Filed: Nov 20, 2001
Inventor
Frank van Diggelen
Assignee (at issue)
GLOBAL LOCATE, 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.