Granted Patent
Utility
US 5,432,521 · App. 08/186,393
Satellite receiver system having doppler frequency shift tracking
Inventors:
Kazimierz Siwiak, Lorenzo A. Ponce De Leon
Patented Case
View Patent ↗
Granted: Jul 11, 1995
Filed: Jan 14, 1994
Inventors
Kazimierz Siwiak
Lorenzo A. Ponce De Leon
Assignee (at issue)
Motorola, 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.