Granted Patent
Utility
US 5,557,643 · App. 08/418,807
Automatic frequency control system for GMSK-modulated signals
Inventors:
In-Kyung Kim, Zhendong Cao
Patented Case
View Patent ↗
Granted: Sep 17, 1996
Filed: Apr 7, 1995
Inventors
In-Kyung Kim
Zhendong Cao
Assignee (at issue)
HUGHES ELECTRONICS LIMITED
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.