IP Library Granted Patent US 5,228,026
Granted Patent Utility
US 5,228,026 · App. 07/573,307

Technique for time-division duplex cordless telecommunication

Inventors: Richard John Albrow, Nigel Barnes, Graham E. Beesley, Chris Cant, Malcolm Crisp, Michael Dudek, Rupert Leslie Alexander Goodings, David C. Odhams, Peter N. Proctor, Ian W. Rodgers
Patented Case View Patent ↗
Granted: Jul 13, 1993 Filed: Nov 26, 1990
Inventors
Richard John Albrow
Nigel Barnes
Graham E. Beesley
Chris Cant
Malcolm Crisp
Michael Dudek
Rupert Leslie Alexander Goodings
David C. Odhams
Peter N. Proctor
Ian W. Rodgers
Assignees (at issue)
BRITISH TELECOMMUNICATIONS public limited company
Ferranti Creditphone Limited
GEC Plessey Telecommunication Limited
Mercury Communications Group, LLC
Orbitel Mobile Communications Limited
Shaye Communications Limited
Phonepoint Limited
STC PLC

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.

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Quick Facts
Patent No.
US 5,228,026
App. No.
07/573,307
Filed
1990-11-26
Granted
1993-07-13
Kind
A