Granted Patent
Utility
US 5,117,423 · App. 07/527,987
Data transmission over a time division duplex channel
Inventors:
Robert F. Shepherd, Frank C. G. Owen, Christopher David Pudney
Patented Case
View Patent ↗
Granted: May 26, 1992
Filed: May 23, 1990
Inventors
Robert F. Shepherd
Frank C. G. Owen
Christopher David Pudney
Assignee (at issue)
U.S. Philips Corporation
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.