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EP0331497
European procedure
Extract from the Register of European Patents
EP About this file: EP0331497
| EP0331497 - Method for improving core loss properties of electrical sheet product [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 02.03.1996 Database last updated on 02.09.2024 | Most recent event Tooltip | 28.12.2002 | Lapse of the patent in a contracting state New state(s): NL | published on 12.02.2003 [2003/07] | Applicant(s) | For all designated states ALLEGHENY LUDLUM CORPORATION 1000 Six PPG Place Pittsburgh Pennsylvania 15222 / US | [N/P] |
| Former [1989/36] | For all designated states ALLEGHENY LUDLUM CORPORATION 1000 Six PPG Place Pittsburgh Pennsylvania 15222 / US | Inventor(s) | 01 /
Salsgiver, James Allen 111 Scenic View Drive Sarver Pennsylvania 16055 / US | 02 /
Stroble, Carl Philip 1128 Carlisle Street Natrona Heights Pennsylvania 15065 / US | 03 /
Knipe, Randal Ken 2719 Primrose Lane Natrona Heights Pennsylvania 15065 / US | [1989/36] | Representative(s) | Gilding, Martin John, et al Eric Potter Clarkson, Park View House, 58 The Ropewalk Nottingham NG1 5DD / GB | [N/P] |
| Former [1996/16] | Gilding, Martin John, et al Eric Potter & Clarkson St. Mary's Court St. Mary's Gate Nottingham NG1 1LE / GB | ||
| Former [1989/36] | Sheader, Brian N., et al Eric Potter & Clarkson St. Mary's Court St. Mary's Gate Nottingham NG1 1LE / GB | Application number, filing date | 89302103.0 | 02.03.1989 | [1989/36] | Priority number, date | US19880163448 | 03.03.1988 Original published format: US 163448 | [1989/36] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0331497 | Date: | 06.09.1989 | Language: | EN | [1989/36] | Type: | A3 Search report | No.: | EP0331497 | Date: | 21.08.1991 | Language: | EN | [1991/34] | Type: | B1 Patent specification | No.: | EP0331497 | Date: | 26.04.1995 | Language: | EN | [1995/17] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 02.07.1991 | Classification | IPC: | C21D8/12 | [1989/36] | CPC: |
C21D8/1294 (EP,US);
C21D1/34 (KR);
H01F1/15341 (EP,US);
H01F1/16 (EP,US)
| Designated contracting states | AT, BE, CH, DE, FR, GB, IT, LI, LU, NL, SE [1989/36] | Title | German: | Verfahren zum Verbessern der Ummagnetisierungseigenschaften von Elektroblechen | [1989/36] | English: | Method for improving core loss properties of electrical sheet product | [1989/36] | French: | Procédé pour ameliorer les propriétes d'inversion magnétique de tôles électriques | [1989/36] | Examination procedure | 03.02.1992 | Examination requested [1992/14] | 04.12.1992 | Despatch of a communication from the examining division (Time limit: M04) | 05.04.1993 | Reply to a communication from the examining division | 09.09.1993 | Despatch of a communication from the examining division (Time limit: M04) | 11.01.1994 | Reply to a communication from the examining division | 20.06.1994 | Despatch of communication of intention to grant (Approval: No) | 06.10.1994 | Despatch of communication of intention to grant (Approval: later approval) | 17.10.1994 | Communication of intention to grant the patent | 05.01.1995 | Fee for grant paid | 05.01.1995 | Fee for publishing/printing paid | Opposition(s) | 27.01.1996 | No opposition filed within time limit [1996/16] | Fees paid | Renewal fee | 08.03.1991 | Renewal fee patent year 03 | 25.02.1992 | Renewal fee patent year 04 | 26.02.1993 | Renewal fee patent year 05 | 24.02.1994 | Renewal fee patent year 06 | 20.02.1995 | Renewal fee patent year 07 |
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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 | AT | 26.04.1995 | BE | 26.04.1995 | CH | 26.04.1995 | LI | 26.04.1995 | NL | 26.04.1995 | [2003/07] |
| Former [1996/05] | AT | 26.04.1995 | |
| BE | 26.04.1995 | ||
| CH | 26.04.1995 | ||
| LI | 26.04.1995 | ||
| Former [1996/02] | AT | 26.04.1995 | |
| CH | 26.04.1995 | ||
| LI | 26.04.1995 | ||
| Former [1995/44] | CH | 26.04.1995 | |
| LI | 26.04.1995 | Documents cited: | Search | [A]JP57161031 ; | [AD]US3990923 (TAKASHINA KIKUO, et al); | [A]EP0100638 (ARMCO INC [US]); | [X]GB2128639 (WESTINGHOUSE ELECTRIC CORP); | [XD]EP0108573 (ARMCO INC [US]); | [XP]EP0260927 (KAWASAKI STEEL CO [JP]); | [XP]US4767469 (SALSGIVER JAMES A [US], et al) | [A] - PATENT ABSTRACTS OF JAPAN vol 7, No 3 (C143)(1148) 7 January 1983 & JP-A-57161031 (Shin Nippon Steel) 4.10.1982, & JP57161031 A 19830107 |