Granted Patent
Utility
US 6,023,239 · App. 08/947,390
Method and system for a differential global navigation satellite system aircraft landing ground station
Inventor:
Karl L. Kovach
Patented Case
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Granted: Feb 8, 2000
Filed: Oct 8, 1997
Inventor
Karl L. Kovach
Assignee (at issue)
ARINC Incorporated
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.