Granted Patent
Utility
US 6,160,509 · App. 09/116,773
Method and apparatus for alerting a user regarding the position of a satellite
Inventors:
Paul Graziani, Douglas John Claffey
Patented Case
View Patent ↗
Granted: Dec 12, 2000
Filed: Jul 16, 1998
Inventors
Paul Graziani
Douglas John Claffey
Assignee (at issue)
Analytical Graphics 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.