Granted Patent
Utility
US 6,178,197 · App. 09/365,108
Frequency discrimination in a spread spectrum signal processing system
Inventors:
Robert K. Froelich, Forrest F. Fulton
Patented Case
View Patent ↗
Granted: Jan 23, 2001
Filed: Jul 30, 1999
Inventors
Robert K. Froelich
Forrest F. Fulton
Assignee (at issue)
Cellnet Data Systems, 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.