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EP0280174
European procedure
Extract from the Register of European Patents
EP About this file: EP0280174
| EP0280174 - Compounds having schiff bonds, polymers thereof,and process for preparing the same [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 03.01.1996 Database last updated on 15.06.2024 | Most recent event Tooltip | 03.01.1996 | No opposition filed within time limit | published on 24.01.1996 [1996/04] | Applicant(s) | For all designated states Hitachi, Ltd. 6, Kanda Surugadai 4-chome Chiyoda-ku Tokyo / JP | [N/P] |
| Former [1988/35] | For all designated states HITACHI, LTD. 6, Kanda Surugadai 4-chome Chiyoda-ku, Tokyo 100 / JP | Inventor(s) | 01 /
Nishikawa, Akio 13-21, Omikacho-6-chome Hitachi-shi / JP | 02 /
Koyama, Toru 6-6, Suwacho-1-chome Hitachi-shi / JP | 03 /
Asano, Hideki 2812-13, Senbacho Mito-shi / JP | 04 /
Narahara, Toshikazu 409-5, Muramatsu Tokaimura Naka-gun Ibaraki-ken / JP | [1988/35] | Representative(s) | Strehl Schübel-Hopf & Partner Maximilianstrasse 54 80538 München / DE | [N/P] |
| Former [1988/35] | Strehl Schübel-Hopf Groening & Partner Maximilianstrasse 54 D-80538 München / DE | Application number, filing date | 88102305.5 | 17.02.1988 | [1988/35] | Priority number, date | JP19870035562 | 20.02.1987 Original published format: JP 3556287 | [1988/35] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0280174 | Date: | 31.08.1988 | Language: | EN | [1988/35] | Type: | A3 Search report | No.: | EP0280174 | Date: | 30.11.1988 | Language: | EN | [1988/48] | Type: | B1 Patent specification | No.: | EP0280174 | Date: | 01.02.1995 | Language: | EN | [1995/05] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 10.10.1988 | Classification | IPC: | C07C255/61, C08G73/06 | [1995/05] | CPC: |
C07C255/00 (EP,US);
C07C255/61 (KR);
C08G73/065 (EP,US)
|
| Former IPC [1988/35] | C07C121/84, C08G73/06 | Designated contracting states | CH, DE, FR, GB, LI [1988/35] | Title | German: | Schiff-Bindungen enthaltende Verbindungen, ihre Polymere und Verfahren zu deren Herstellung | [1988/35] | English: | Compounds having schiff bonds, polymers thereof,and process for preparing the same | [1988/35] | French: | Composés contenant les liaisons Schiff, leurs polymères et leur procédé de préparation | [1988/35] | Examination procedure | 26.05.1989 | Examination requested [1989/31] | 31.10.1990 | Despatch of a communication from the examining division (Time limit: M04) | 11.03.1991 | Reply to a communication from the examining division | 05.08.1991 | Despatch of a communication from the examining division (Time limit: M06) | 17.02.1992 | Reply to a communication from the examining division | 21.01.1993 | Despatch of a communication from the examining division (Time limit: M06) | 30.07.1993 | Reply to a communication from the examining division | 12.08.1993 | Despatch of a communication from the examining division (Time limit: M06) | 19.01.1994 | Reply to a communication from the examining division | 30.03.1994 | Despatch of communication of intention to grant (Approval: Yes) | 28.07.1994 | Communication of intention to grant the patent | 13.10.1994 | Fee for grant paid | 13.10.1994 | Fee for publishing/printing paid | Opposition(s) | 03.11.1995 | No opposition filed within time limit [1996/04] | Fees paid | Renewal fee | 27.02.1990 | Renewal fee patent year 03 | 28.12.1990 | Renewal fee patent year 04 | 27.02.1992 | Renewal fee patent year 05 | 25.02.1993 | Renewal fee patent year 06 | 28.02.1994 | 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. | Documents cited: | Search | [X]GB809410 (ARTHUR ABBEY) | [X] - CHEMICAL ABSTRACTS, Vol. 95, No. 20, November 16, 1981, page 27, Ref. No. 170155h; Columbus, Ohio, US, B.A. ZAITSEV et al.: "Cyano derivatives of Schiff bases and their heat-resistant polymers of three-dimensional structure", & Vysokomol. Soedin., Ser. B, 1981, 23(7), 528-31, whole Abstract. | [X] - Journal of the Chemical Society, Perkin Transactions II, 1976, pages 300-301, D. COATES et al.: "The effect of the terminal trifluoromethyl group on nematic liquid crystal thermal stability", whole document. | [X] - CHEMICAL ABSTRACTS, Vol. 79, No. 21, November 26, 1973, page 326, Ref. No. 125445m; Columbus, Ohio, US, A. MESLI et al.: "Mechanism of the hydrolysis of Schiff bases. Structure model study", & C.R. Acad. Sci. Ser. C 1971, 272 (13), 1233-6, whole Abstract. | [X] - Synthesis, No. 6, June 1981, pages 442-444, Georg Thieme Verlag, New York, US, R. GRIGG et al.: "The reduction of aldimines by hydrogen transfer from propan-2-ol catalysed by rhodium complexes", whole article. | Examination | US4307035 | US4057569 | US3952046 | US3927064 | US3923857 | US3751466 | US2935524 | US2394530 | DE3015388 | DE2716610 | DE2443618 | GB1458710 | FR2202731 | DE3015388 | DE2716610 | DE2443618 | FR2202731 | - US-A 4307035, & US4307035 A 00000000 | - US-A 4057569, & US4057569 A 00000000 | - US-A 3952046, & US3952046 A 00000000 | - US-A 3927064, & US3927064 A 00000000 | - US-A 3923857, & US3923857 A 00000000 | - US-A 3751466, & US3751466 A 00000000 | - US-A 2935524, & US2935524 A 00000000 | - US-A 2394530, & US2394530 A 00000000 | - DE-A 3015388, & DE3015388 A 00000000 | - DE-A 2716610, & DE2716610 A 00000000 | - DE-A 2443618, & DE2443618 A 00000000 | - GB-A 1458710, & GB1458710 A 00000000 | - FR-A 2202731, & FR2202731 A 00000000 |