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EP0491554
European procedure
Extract from the Register of European Patents
EP About this file: EP0491554
| EP0491554 - Monitoring partial discharges [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 04.04.1997 Database last updated on 29.10.2024 | Most recent event Tooltip | 07.12.2007 | Lapse of the patent in a contracting state | published on 09.01.2008 [2008/02] | Applicant(s) | For all designated states PATENTED DEVICES (PROPRIETARY) LIMITED 2nd Floor, 1 Park Road, Richmond Johannesburg Transvaal / ZA | [N/P] |
| Former [1992/26] | For all designated states PATENTED DEVICES (PROPRIETARY) LIMITED 2nd Floor, 1 Park Road, Richmond Johannesburg, Transvaal / ZA | Inventor(s) | 01 /
Jenkinson, Christopher Graham 71 Worcester Road, Parkwood Johannesburg, Transvaal / ZA | [1992/26] | Representative(s) | Shindler, Nigel Brookes Batchellor LLP 1 Boyne Park Tunbridge Wells Kent TN4 8EL / GB | [N/P] |
| Former [1992/26] | Shindler, Nigel BATCHELLOR, KIRK & CO. 2 Pear Tree Court Farringdon Road London EC1R 0DS / GB | Application number, filing date | 91311713.1 | 17.12.1991 | [1992/26] | Priority number, date | ZA19900010126 | 17.12.1990 Original published format: ZA 9010126 | [1992/26] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0491554 | Date: | 24.06.1992 | Language: | EN | [1992/26] | Type: | B1 Patent specification | No.: | EP0491554 | Date: | 22.05.1996 | Language: | EN | [1996/21] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 21.02.1992 | Classification | IPC: | G01R31/12 | [1992/26] | CPC: |
G01R31/12 (EP,US)
| Designated contracting states | AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LI, LU, NL, SE [1992/26] | Title | German: | Überwachung von Teilentladungen | [1992/26] | English: | Monitoring partial discharges | [1992/26] | French: | Surveillance de décharges partielles | [1992/26] | Examination procedure | 22.12.1992 | Examination requested [1993/08] | 02.01.1995 | Despatch of a communication from the examining division (Time limit: M06) | 22.05.1995 | Reply to a communication from the examining division | 18.07.1995 | Despatch of communication of intention to grant (Approval: Yes) | 27.11.1995 | Communication of intention to grant the patent | 22.02.1996 | Fee for grant paid | 22.02.1996 | Fee for publishing/printing paid | Opposition(s) | 25.02.1997 | No opposition filed within time limit [1997/21] | Fees paid | Renewal fee | 19.11.1993 | Renewal fee patent year 03 | 30.11.1994 | Renewal fee patent year 04 | 13.12.1995 | Renewal fee patent year 05 |
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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 Tooltip | DK | 22.05.1996 | ES | 22.05.1996 | GR | 22.05.1996 | IT | 22.05.1996 | NL | 22.05.1996 | SE | 22.08.1996 | LU | 31.12.1996 | [2008/02] |
| Former [2003/07] | DK | 22.05.1996 | |
| ES | 22.05.1996 | ||
| GR | 22.05.1996 | ||
| IT | 22.05.1996 | ||
| NL | 22.05.1996 | ||
| SE | 22.08.1996 | ||
| LU | 31.12.1996 | ||
| Former [2002/25] | DK | 22.05.1996 | |
| ES | 22.05.1996 | ||
| GR | 22.05.1996 | ||
| IT | 22.05.1996 | ||
| SE | 22.08.1996 | ||
| LU | 31.12.1996 | ||
| Former [2000/05] | DK | 22.05.1996 | |
| GR | 22.05.1996 | ||
| IT | 22.05.1996 | ||
| SE | 22.08.1996 | ||
| LU | 31.12.1996 | ||
| Former [1999/42] | DK | 22.05.1996 | |
| IT | 22.05.1996 | ||
| SE | 22.08.1996 | ||
| Former [1998/15] | DK | 22.05.1996 | |
| SE | 22.08.1996 | ||
| Former [1996/51] | SE | 22.08.1996 | Documents cited: | Search | [A]EP0328109 (HEWLETT PACKARD CO [US]) | [X] - JOURNAL OF APPLIED PHYSICS vol. 62, 1 November 1981, pages 3605 - 3615; J.P.NOVAK ET AL.: 'REAKDOWN MODEL OF A SHORT PLANE-PARRALEL GAP' | [Y] - IEEE TRANS. ELECTR. INSUL. vol. EI-12, no. 3, June 1977, pages 224 - 233; R.MILLER: 'Partial discharge measurements over the frequency range' | [A] - ELEKTRIE vol. 40, no. 6, 1986, pages 225 - 227; H.BACHMANN ET AL.: 'Eine neue Steuerung fuer Impulsspannungs-pruefgeneratoren' | [A] - IEEE 1988 INT. SYMP. ON ELECTROMAGNETIC COMPATIBILITY 2 August 1988, SEATTLE US pages 1 - 5; KORSTOCK ET AL.: 'POWER REFLECTION IN SUSCEPTIBILITY TESTS OF ELECTRONIC DEVICES' | Examination | - 227; H.BACHMANN ET AL.: 'Eine neue Steuerung fuer Impulsspannungs- pruefgeneratoren' |