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Extract from the Register of European Patents

EP About this file: EP0215086

EP0215086 - LINE TRANSMISSION SYSTEMS [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  22.02.1989
Database last updated on 29.07.2024
Most recent event   Tooltip16.10.2009Change - applicantpublished on 18.11.2009  [2009/47]
Applicant(s)For all designated states
BRITISH TELECOMMUNICATIONS public limited company
81 Newgate Street London
EC1A 7AJ / GB
[2009/47]
Former [1993/28]For all designated states
BRITISH TELECOMMUNICATIONS public limited company
British Telecom Centre, 81 Newgate Street
London EC1A 7AJ / GB
Former [1987/13]For all designated states
BRITISH TELECOMMUNICATIONS public limited company
British Telecom Centre, 81 Newgate Street
London EC1A 7AJ / GB
Inventor(s)01 / SMITH, David, Robert Oakburn, Harriers Walk
Easton Woodbridge
Suffolk IP3 OHA / GB
02 / HOPPER, Raymond, Charles 3 Netherwood Court
Eagle Way Martlesham Heath
Ipswich IP5 7TT / GB
[1987/13]
Representative(s)Greenwood, John David, et al
British Telecom
Intellectual Property Unit
151 Gower Street
London
WC1 6BA / GB
[N/P]
Former [1989/06]Greenwood, John David, et al
British Telecom Intellectual Property Unit 151 Gower Street
London WC1E 6BA / GB
Former [1988/52]Pratt, David Martin
Intellectual Property Unit British Telecom 151 Gower Street
London WC1E 6BA / GB
Former [1987/13]Wolff, Eric
BRITISH TELECOM Intellectual Property Unit 13th Floor 151 Gower Street
London WC1E 6BA / GB
Application number, filing date86901924.006.03.1986
[1987/13]
WO1986GB00128
Priority number, dateGB1985000594007.03.1985         Original published format: GB 8505940
GB1985000998318.04.1985         Original published format: GB 8509983
GB1985000998418.04.1985         Original published format: GB 8509984
[1987/13]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO8605343
Date:12.09.1986
Language:EN
[1986/20]
Type: A1 Application with search report 
No.:EP0215086
Date:25.03.1987
Language:EN
The application published by WIPO in one of the EPO official languages on 12.09.1986 takes the place of the publication of the European patent application.
[1987/13]
Search report(s)International search report - published on:EP12.09.1986
ClassificationIPC:H04J3/04, H04B9/00
[1987/13]
CPC:
G02B6/2938 (EP,US); G02B6/2861 (EP,US); G02B6/29352 (EP,US);
G02B6/29395 (EP,US); H03M5/145 (EP,US); H04J14/08 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   FR,   GB,   IT,   LI,   LU,   NL,   SE [1987/13]
TitleGerman:LEITUNGSÜBERTRAGUNGSSYSTEM[1987/13]
English:LINE TRANSMISSION SYSTEMS[1987/13]
French:SYSTEMES DE TRANSMISSION PAR LIGNE[1987/13]
File destroyed:21.07.1995
Entry into regional phase04.12.1986National basic fee paid 
04.12.1986Designation fee(s) paid 
04.12.1986Examination fee paid 
Examination procedure04.12.1986Examination requested  [1987/13]
01.10.1988Application deemed to be withdrawn, date of legal effect  [1989/15]
11.11.1988Despatch of communication that the application is deemed to be withdrawn, reason: renewal fee not paid in time  [1989/15]
Fees paidPenalty fee
Additional fee for renewal fee
31.03.198803   M06   Not yet paid
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See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Cited inInternational searchUS3521068  [ ] (ARMSTRONG JOHN A, et al);
 GB1540907  [ ] (STANDARD TELEPHONES CABLES LTD);
 FR2450539  [ ] (LYONNAISE TRANSMISS OPTIQUES);
 US4507776  [ ] (SMITH PETER W [US]);
 WO8504064  [ ] (AMERICAN TELEPHONE & TELEGRAPH [US])
 [X]  - IBM Technical Disclosure Bulletin, Volume 24, No. 5, October 1981, New York, (US) M. THEWALT: "Time Domain Multiplexing of Signals on an Optical Fiber using Modelocked Laser Pulses", see page 2474, line 1 - page 2475line 7
 [A]  - IEEE Journal of Lightwave Technology, Volume LT-3, No. 1, February 1985, New York, (US) S.K. KOROTKY et al.: "Fully Connectorized High-Speed Ti: LiNb03 Switch/Modulator for Time-Division Multiplexing and Data Encoding", pages 1-6, see page 4paragraph "Time-Division Multiplexing"
 [A]  - IEEE Transactions on Microwave Theory and Techniques, Volume MTT-30, No. 10, October 1982, New York, (US) M. KONDO et al.: "Integrated Optical Switch Matrix for Single-Mode Fiber Networks", pages 1747-1753see figure 1
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.