Granted Patent
Utility
US 6,041,280 · App. 08/637,537
GPS car navigation system
Inventors:
Sanjai Kohli, Steven Chen
Patented Case
View Patent ↗
Granted: Mar 21, 2000
Filed: Apr 25, 1996
Inventors
Sanjai Kohli
Steven Chen
Assignee (at issue)
SIRF Technology, 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.