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EP0539331
European procedure
Extract from the Register of European Patents
EP About this file: EP0539331
| EP0539331 - Adducts of diaminodiphenyl sulfone compounds as hardeners for epoxy resins [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 11.04.1997 Database last updated on 20.05.2024 | Most recent event Tooltip | 11.04.1997 | No opposition filed within time limit | published on 28.05.1997 [1997/22] | Applicant(s) | For all designated states CIBA-GEIGY AG Klybeckstrasse 141 4002 Basel / CH | [N/P] |
| Former [1993/17] | For all designated states CIBA-GEIGY AG Klybeckstrasse 141 CH-4002 Basel / CH | Inventor(s) | 01 /
Blyakhman, Yefim 4705 Henry Hudson Parkway Bronx, NY 10471 / US | [1993/17] | Application number, filing date | 92810797.8 | 16.10.1992 | [1993/17] | Priority number, date | US19910783452 | 25.10.1991 Original published format: US 783452 | [1993/17] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0539331 | Date: | 28.04.1993 | Language: | EN | [1993/17] | Type: | B1 Patent specification | No.: | EP0539331 | Date: | 05.06.1996 | Language: | EN | [1996/23] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 28.01.1993 | Classification | IPC: | C08G59/18, C08G59/24, C08G59/50 | [1993/17] | CPC: |
C08G59/184 (EP,US)
| Designated contracting states | BE, DE, ES, FR, GB, IT, NL, SE [1993/17] | Title | German: | Addukte von Diaminodiphenylsulfonderivaten für Epoxyharzhärter | [1996/23] | English: | Adducts of diaminodiphenyl sulfone compounds as hardeners for epoxy resins | [1993/17] | French: | Produits d'addition de composés de diaminodiphényl sulfone comme durcisseurs de résines époxy | [1993/17] |
| Former [1993/17] | Adduckte von Diaminodiphenylsulfonderivate für Epoxyharzhärter | Examination procedure | 02.06.1993 | Examination requested [1993/31] | 22.05.1995 | Despatch of a communication from the examining division (Time limit: M04) | 19.09.1995 | Reply to a communication from the examining division | 16.11.1995 | Despatch of communication of intention to grant (Approval: Yes) | 05.12.1995 | Communication of intention to grant the patent | 06.02.1996 | Fee for grant paid | 06.02.1996 | Fee for publishing/printing paid | Opposition(s) | 06.03.1997 | No opposition filed within time limit [1997/22] | Fees paid | Renewal fee | 05.09.1994 | Renewal fee patent year 03 | 02.09.1995 | 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. | Documents cited: | Search | [A]EP0049687 (CIBA GEIGY AG [CH]); | [A]EP0193082 (HERCULES INC [US]); | [AD]US4330644 (ALLEN ROY A) |