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EP0557120
European procedure
Extract from the Register of European Patents
EP About this file: EP0557120
| EP0557120 - Polymer scale preventive agent [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 18.04.1997 Database last updated on 24.07.2024 | Most recent event Tooltip | 09.05.2002 | Lapse of the patent in a contracting state New state(s): ES | published on 26.06.2002 [2002/26] | Applicant(s) | For all designated states Shin-Etsu Chemical Co., Ltd. 6-1, Otemachi 2-chome Chiyoda-ku Tokyo / JP | [N/P] |
| Former [1993/34] | For all designated states SHIN-ETSU CHEMICAL CO., LTD. 6-1, Ohtemachi 2-chome Chiyoda-ku Tokyo / JP | Inventor(s) | 01 /
Shimizu, Toshihide E-702, 3-3, Tomioka Urayasu-shi, Chiba-ken / JP | 02 /
Watanabe, Mikio 3-3-24, Shittechuo, Kamisu-machi Kashima-gun, Ibaraki-ken / JP | [1993/34] | Representative(s) | Votier, Sidney David CARPMAELS & RANSFORD 43, Bloomsbury Square London WC1A 2RA / GB | [1993/34] | Application number, filing date | 93301232.0 | 19.02.1993 | [1993/34] | Priority number, date | JP19920070300 | 20.02.1992 Original published format: JP 7030092 | [1993/34] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0557120 | Date: | 25.08.1993 | Language: | EN | [1993/34] | Type: | A3 Search report | No.: | EP0557120 | Date: | 29.09.1993 | Language: | EN | [1993/39] | Type: | B1 Patent specification | No.: | EP0557120 | Date: | 12.06.1996 | Language: | EN | [1996/24] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 11.08.1993 | Classification | IPC: | C08F2/00, C08G12/06, C08F14/06, C08G73/02, C07C251/22 | [1993/39] | CPC: |
C08F2/004 (EP);
C08G73/0206 (EP)
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| Former IPC [1993/34] | C08F2/00, C08G12/06, C08F14/06 | Designated contracting states | DE, ES, FR, GB, NL, PT [1993/34] | Title | German: | Polymerbelagerungsinhibitor | [1993/34] | English: | Polymer scale preventive agent | [1993/34] | French: | Agent prévenant l'encroûtage par des polymères | [1993/34] | Examination procedure | 05.01.1994 | Examination requested [1994/10] | 30.01.1995 | Despatch of a communication from the examining division (Time limit: M06) | 04.08.1995 | Reply to a communication from the examining division | 09.10.1995 | Despatch of communication of intention to grant (Approval: Yes) | 15.12.1995 | Communication of intention to grant the patent | 09.02.1996 | Fee for grant paid | 09.02.1996 | Fee for publishing/printing paid | Opposition(s) | 13.03.1997 | No opposition filed within time limit [1997/23] | Fees paid | Renewal fee | 10.02.1995 | Renewal fee patent year 03 | 08.02.1996 | Renewal fee patent year 04 |
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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 | ES | 12.06.1996 | DE | 13.09.1996 | GB | 19.02.1997 | [2002/26] |
| Former [1998/05] | DE | 13.09.1996 | |
| GB | 19.02.1997 | ||
| Former [1997/03] | DE | 13.09.1996 | Documents cited: | Search | [X]FR2383199 ; | [X]US4517344 | [X] - JOURNAL OF APPLIED POL. SCI. vol. 42, 1991, US pages 2899 - 2901 V.S.NITHIANANDAM ET AL. 'Quinone-amine polymers.VI. Syntheses and solubilities of several cooligomers produced by reacting two diamines with p-benzoquinone' | [X] - JOURNAL OF APPLIED POL. SCI. vol. 42, 1991, US pages 2893 - 2897 V.S. NITHIANANDAM ET AL. 'Quinone-amine polymers. V. Syntheses and solubilities of several diamine-p-benzoquinone oligomers' | Examination | - JOURNAL OF APPLIED POL. SCI. vol. 42, 1991, US pages 2893 - 2897 and pages 2899 - 2901, V. S. NITHIANANDAM et al. |