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Extract from the Register of European Patents

EP About this file: EP0291221

EP0291221 - Method of producing a superconductive body, and apparatus and systems comprising the body [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  17.10.1997
Database last updated on 21.05.2024
Most recent event   Tooltip30.11.2007Lapse of the patent in a contracting state
New state(s): NL
published on 02.01.2008  [2008/01]
Applicant(s)For all designated states
AT&T Corp.
32 Avenue of the Americas
New York, NY 10013-2412 / US
[1988/46]
Inventor(s)01 / Sungho, Jin
145 Skyline Drive
Millington New Jersey 07946 / US
02 / Sherwood, Richard Curry
8 Vista Lane
New Providence New Jersey 07946 / US
03 / Tiefel, Thomas Henry
401 South Washington Avenue
Piscataway New Jersey 08854 / US
[1988/46]
Representative(s)Johnston, Kenneth Graham, et al
Lucent Technologies EUR-IP UK Ltd Unit 18, Core 3 Workzone Innova Business Park Electric Avenue
Enfield, EN3 7XB / GB
[N/P]
Former [1988/46]Johnston, Kenneth Graham, et al
AT&T (UK) LTD. AT&T Intellectual Property Division 5 Mornington Road
Woodford Green Essex, IG8 OTU / GB
Application number, filing date88304011.504.05.1988
[1988/46]
Priority number, dateUS1987004976712.05.1987         Original published format: US 49767
[1988/46]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0291221
Date:17.11.1988
Language:EN
[1988/46]
Type: A3 Search report 
No.:EP0291221
Date:23.10.1991
Language:EN
[1991/43]
Type: B1 Patent specification 
No.:EP0291221
Date:11.12.1996
Language:EN
[1996/50]
Search report(s)(Supplementary) European search report - dispatched on:EP06.09.1991
ClassificationIPC:H01L39/08, H01L39/12
[1988/46]
CPC:
H10N60/0801 (EP,US); Y10T29/49014 (EP,US); Y10T428/12736 (EP,US)
Designated contracting statesDE,   FR,   GB,   IT,   NL [1988/46]
TitleGerman:Verfahren zur Herstellung eines supraleitenden Gegenstandes sowie diesen Gegenstand verwendende Vorrichtung und Systeme[1988/46]
English:Method of producing a superconductive body, and apparatus and systems comprising the body[1988/46]
French:Procédé de fabrication d'un corps supraconducteur ainsi que dispositif et systèmes le comprenant[1988/46]
Examination procedure15.04.1992Examination requested  [1992/25]
06.09.1994Despatch of a communication from the examining division (Time limit: M06)
14.03.1995Reply to a communication from the examining division
16.02.1996Despatch of communication of intention to grant (Approval: Yes)
09.04.1996Communication of intention to grant the patent
01.07.1996Fee for grant paid
01.07.1996Fee for publishing/printing paid
Opposition(s)12.09.1997No opposition filed within time limit [1997/49]
Fees paidRenewal fee
16.05.1990Renewal fee patent year 03
14.12.1990Renewal fee patent year 04
19.05.1992Renewal fee patent year 05
17.05.1993Renewal fee patent year 06
12.05.1994Renewal fee patent year 07
12.05.1995Renewal fee patent year 08
20.05.1996Renewal fee patent year 09
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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  TooltipIT11.12.1996
NL11.12.1996
[2003/07]
Former [1999/42]IT11.12.1996
Documents cited:Search[E]EP0285319  (AMERICAN TELEPHONE & TELEGRAPH [US]);
 [E]EP0301283  (ASEA BROWN BOVERI [CH]);
 [E]EP0318921  (ALSTHOM [FR])
 [A]  - JAPANESE JOURNAL OF APPLIED PHYSICS.LETTERS vol. 26, no. 5, May 1987, TOKYO JP pages 759 - 760; O. KOHNO ET AL: "Critical temperature and critical current density of La-Sr-Cu oxide wires"
 [XP]  - APPLIED PHYSICS LETTERS. vol. 51, no. 3, 20 July 1987, NEW YORK US pages 203 - 204; S. JIN ET AL: "High Tc superconductors-composite wire fabrication"
 [XP]  - FUJIKAMA TECHNICAL REVIEW vol. 17, February 1988, TOKYO JP pages 1 - 4; H. OSANAI ET AL: "High temperature superconducting oxide wires"
ExaminationEP0281474
    - Proceedings of Symposium S, 1987, Spring Meeting of the Material Research Society, April 23 - 24 1987, pages 219 - 221
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.