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EP0078609
European procedure
Extract from the Register of European Patents
EP About this file: EP0078609
| EP0078609 - 3-Hydroxybutyric acid polymers [Right-click to bookmark this link] | Status | Patent revoked Status updated on 22.11.1989 Database last updated on 22.05.2024 | Most recent event Tooltip | 22.11.1989 | Revocation of patent | published on 10.01.1990 [1990/02] | Applicant(s) | For all designated states IMPERIAL CHEMICAL INDUSTRIES PLC Imperial Chemical House, Millbank London SW1P 3JF / GB | [1983/19] | Inventor(s) | 01 /
Barham, Peter John 4 Hampton Road Redland Bristol BS6 6HJ / GB | 02 /
Holmes, Paul Arthur 39 Skottowe Crescent Great Ayton Middlesbrough Cleveland / GB | [1983/19] | Representative(s) | Gratwick, Christopher, et al Uniqema Intellectual Property Department PO Box 90 Wilton Middlesbrough Clveland TS90 8JE / GB | [N/P] |
| Former [1983/19] | Gratwick, Christopher, et al Intellectual Property Department ICI Chemicals & Polymers Ltd P.O. Box 11 The Heath Runcorn Cheshire WA7 4QE / GB | Application number, filing date | 82305188.3 | 30.09.1982 | [1983/19] | Priority number, date | GB19810032681 | 29.10.1981 Original published format: GB 8132681 | GB19820008577 | 24.03.1982 Original published format: GB 8208577 | [1983/19] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0078609 | Date: | 11.05.1983 | Language: | EN | [1983/19] | Type: | A3 Search report | No.: | EP0078609 | Date: | 07.08.1985 | Language: | EN | [1985/32] | Type: | B1 Patent specification | No.: | EP0078609 | Date: | 06.05.1987 | Language: | EN | [1987/19] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 06.06.1985 | Classification | IPC: | C08L67/04, C08J5/18 | [1987/19] | CPC: |
C07D295/096 (EP,US);
C07C17/16 (EP,US);
C07C29/147 (EP,US);
C07C405/00 (EP,US);
C07C405/0033 (EP,US);
C07C405/0041 (EP,US);
C07C45/30 (EP,US);
C07D267/10 (EP,US);
C07D295/112 (EP,US);
C07D295/155 (EP,US);
C07D307/935 (EP,US);
C07D309/12 (EP,US);
C07D311/00 (EP,US);
C07D333/12 (EP,US);
C07D333/16 (EP,US);
C07D333/22 (EP,US);
C07D333/24 (EP,US);
D01F6/625 (EP,US);
Y10S428/91 (EP,US)
(-)
| C-Set: |
C07C17/16, C07C25/18 (EP,US);
C07C45/30, C07C49/513 (US,EP) |
| Former IPC [1983/19] | C08J5/18, B29C17/02, B29C17/07, D01F6/62 | Designated contracting states | DE, FR, GB, IT, SE [1983/19] | Title | German: | 3-Hydroxybuttersäure-Polymere | [1983/19] | English: | 3-Hydroxybutyric acid polymers | [1983/19] | French: | Polymère de l'acide 3-hydroxybutyrique | [1983/19] | Examination procedure | 04.07.1985 | Examination requested [1985/38] | 11.09.1986 | Despatch of communication of intention to grant (Approval: ) | 07.11.1986 | Communication of intention to grant the patent | 09.01.1987 | Fee for grant paid | 09.01.1987 | Fee for publishing/printing paid | Opposition(s) | Opponent(s) | 01
05.02.1988
22.04.1988
ADMISSIBLE Petrochemie Danubia Gesellschaft m.b.H. Danubiastr. 21-25 A-2323 Schwechat-Mannswörth / AT Opponent's representative Kunz, Ekkehard Agrolinz Melamin GmbH Patentabteilung, St. Peter-Strasse 25 4021 Linz / AT | [N/P] |
| Former [1988/14] | |||
| Opponent(s) | 01
05.02.1988
22.04.1988
ADMISSIBLE Petrochemie Danubia Gesellschaft m.b.H. Danubiastr. 21-25 A-2323 Schwechat-Mannswörth / AT Opponent's representative Kunz, Ekkehard, Dr. Chemie Linz GmbH Abteilung Patente St. Peter-Str. 25 A-4021 Linz / AT | 26.04.1988 | Invitation to proprietor to file observations on the notice of opposition | 17.08.1988 | Reply of patent proprietor to notice(s) of opposition | 19.01.1989 | Communication of observations of patent proprietor (Time limit: M04) | 05.05.1989 | Reply of parties involved to observations of patent proprietor | 14.08.1989 | Despatch of communication that the patent will be revoked | 24.08.1989 | Legal effect of revocation of patent [1990/02] | Fees paid | Renewal fee | 11.08.1984 | Renewal fee patent year 03 | 09.08.1985 | Renewal fee patent year 04 | 08.08.1986 | 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. | Documents cited: | Search | [AD]US3107172 (BAPTIST JAMES N, et al); | [A]FR1490855 (SHELL INT RESEARCH); | [AD]EP0024810 (ICI PLC [GB]) |