Granted Patent
Utility
US 6,642,884 · App. 09/851,355
Satellite-based positioning system receiver for weak signal operation
Inventors:
Roderick Bryant, Eamonn P. Glennon, Andrew G. Dempster, Stanley L. Dougan
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: May 8, 2001
Inventors
Roderick Bryant
Eamonn P. Glennon
Andrew G. Dempster
Stanley L. Dougan
Assignee (at issue)
SIGTEC Navigation Pty Ltd.
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.