Granted Patent
Utility
US 6,690,681 · App. 09/531,367
In-band signaling for data communications over digital wireless telecommunications network
Inventors:
Dan Alan Preston, Joseph D. Preston, Robert Leyendecker, Wayne Eatherly, Rod L. Proctor
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Mar 21, 2000
Inventors
Dan Alan Preston
Joseph D. Preston
Robert Leyendecker
Wayne Eatherly
Rod L. Proctor
Assignee (at issue)
AIRBIQUITY 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.