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Extract from the Register of European Patents

EP About this file: EP0232317

EP0232317 - APPARATUS FOR PROVIDING A GROUND REFERENCE FOR TELEPHONE CUSTOMER SPECIAL CIRCUITS POWERED FROM A FLOATING BATTERY FEED [Right-click to bookmark this link]
Former [1987/34]METHOD AND APPARATUS FOR PROVIDING A GROUND REFERENCE FOR TELEPHONE CUSTOMER SPECIAL CIRCUITS POWERED FROM A FLOATING BATTERY FEED
[1990/52]
StatusNo opposition filed within time limit
Status updated on  31.10.1991
Database last updated on 17.07.2024
Most recent event   Tooltip19.04.2002Lapse of the patent in a contracting state
New state(s): SE
published on 05.06.2002  [2002/23]
Applicant(s)For all designated states
AT&T Corp.
32 Avenue of the Americas
New York, NY 10013-2412 / US
[1987/34]
Inventor(s)01 / BROOKS, Kenneth, Lee
988 Creekside Circle
Naperville, IL 60540 / US
02 / BUFKIN, Paul, Robert
403 Geneva Place
Wheaton, IL 60187 / US
03 / MIHAL, David, George
5 Robinhood Circle North
Oswego, IL 60543 / US
04 / MILLER, Jerry, Gorman
908 Lexington Street
Wheaton, IL 60187 / US
[1987/34]
Representative(s)Buckley, Christopher Simon Thirsk, et al
Lucent Technologies (UK) Ltd, 5 Mornington Road Woodford Green
Essex IG8 0TU / GB
[N/P]
Former [1990/32]Buckley, Christopher Simon Thirsk, et al
AT&T (UK) LTD., AT&T Intellectual Property Division, 5 Mornington Road
Woodford Green, Essex IG8 0TU / GB
Former [1987/34]Buckley, Christopher Simon Thirsk
AT&T (UK) Ltd. 5 Mornington Road
Woodford Green Essex IG8 0TU / GB
Application number, filing date86904631.803.07.1986
[1987/34]
WO1986US01423
Priority number, dateUS1985076188802.08.1985         Original published format: US 761888
[1987/34]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO8701004
Date:12.02.1987
Language:EN
[1987/04]
Type: A1 Application with search report 
No.:EP0232317
Date:19.08.1987
Language:EN
The application published by WIPO in one of the EPO official languages on 12.02.1987 takes the place of the publication of the European patent application.
[1987/34]
Type: B1 Patent specification 
No.:EP0232317
Date:27.12.1990
Language:EN
[1990/52]
Search report(s)International search report - published on:EP12.02.1987
ClassificationIPC:H04Q1/38, H04M19/00
[1987/34]
CPC:
H04Q1/38 (EP,US); H04M19/001 (EP,US)
Designated contracting statesBE,   CH,   DE,   FR,   GB,   LI,   NL,   SE [1987/34]
TitleGerman:ANORDNUNG ZUR HERSTELLUNG EINER ERDREFERENZ FÜR, DURCH SCHWEBENDE SPEISUNG VERSORGTE BESONDERE TEILNEHMERSCHALTUNGEN[1990/52]
English:APPARATUS FOR PROVIDING A GROUND REFERENCE FOR TELEPHONE CUSTOMER SPECIAL CIRCUITS POWERED FROM A FLOATING BATTERY FEED[1990/52]
French:APPAREIL D'ETABLISSEMENT D'UNE REFERENCE DE TERRE POUR DES CIRCUITS SPECIAUX TELEPHONIQUES DE CLIENTS ALIMENTES PAR UNE ALIMENTATION A BATTERIE FLOTTANTE[1990/52]
Former [1987/34]VERFAHREN UND ANORDNUNG ZUR HERSTELLUNG EINER ERDREFERENZ FÜR, DURCH SCHWEBENDE SPEISUNG VERSORGTE BESONDERE TEILNEHMERSCHALTUNGEN
Former [1987/34]METHOD AND APPARATUS FOR PROVIDING A GROUND REFERENCE FOR TELEPHONE CUSTOMER SPECIAL CIRCUITS POWERED FROM A FLOATING BATTERY FEED
Former [1987/34]PROCEDE ET APPAREIL D'ETABLISSEMENT D'UNE REFERENCE DE TERRE POUR DES CIRCUITS SPECIAUX TELEPHONIQUES DE CLIENTS ALIMENTES PAR UNE ALIMENTATION A BATTERIE FLOTTANTE
File destroyed:20.04.2002
Entry into regional phase24.03.1987National basic fee paid 
24.03.1987Designation fee(s) paid 
14.07.1987Examination fee paid 
Examination procedure14.07.1987Examination requested  [1987/39]
03.07.1989Despatch of a communication from the examining division (Time limit: M04)
28.10.1989Reply to a communication from the examining division
06.03.1990Despatch of communication of intention to grant (Approval: Yes)
26.06.1990Communication of intention to grant the patent
24.08.1990Fee for grant paid
24.08.1990Fee for publishing/printing paid
Opposition(s)28.09.1991No opposition filed within time limit [1991/51]
Fees paidRenewal fee
21.07.1988Renewal fee patent year 03
19.07.1989Renewal fee patent year 04
27.07.1990Renewal fee patent year 05
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court
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.
Lapses during opposition  TooltipBE27.12.1990
CH27.12.1990
LI27.12.1990
NL27.12.1990
SE27.12.1990
[2002/23]
Former [1991/45]BE27.12.1990
CH27.12.1990
LI27.12.1990
NL27.12.1990
Former [1991/43]BE27.12.1990
CH27.12.1990
LI27.12.1990
Former [1991/39]BE27.12.1990
Cited inInternational searchEP0109705  [ ] (PHILIPS NV [NL])
 [A]  - Proceedings of the National Electronics Conference, Volume 35, October 1981, (Oak Brook, Illinois US), FREIMANIS: "Florating Interfaces in Telephone System", pages 25-28 see page 27, right-hand column, line 3 - page 28, left-hand column, line 8
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.