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EP0006344
European procedure
Extract from the Register of European Patents
EP About this file: EP0006344
| EP0006344 - A process for the aqueous dispersion polymerization of tetrafluoroethylene [Right-click to bookmark this link] | Status | Opposition rejected Status updated on 16.09.1985 Database last updated on 19.10.2024 | Most recent event Tooltip | 16.09.1985 | Opposition rejected | published on 21.11.1985 [1985/47] | Applicant(s) | For all designated states E. I. du Pont de Nemours and Company 1007 Market Street Wilmington, DE 19898 / US | [N/P] |
| Former [1980/12] | For all designated states E.I. DU PONT DE NEMOURS AND COMPANY 1007 Market Street Wilmington Delaware 19898 / US | ||
| Former [1980/12] | For all designated states E.I. DU PONT DE NEMOURS AND COMPANY Barley Plaza, Building 17, P.O. Box 80017 Wilmington, DE 19880-0017 / US | Inventor(s) | 01 /
Gangal, Subhash Vishnu 2805, 26th. Street Parkersburg, W. Virginia 26101 / US | [N/P] | Representative(s) | Myerscough, Philip Boyd, et al J.A.KEMP & CO. 14, South Square Gray's Inn London WC1R 5LX / GB | [1983/11] |
| Former [1983/11] | Myerscough, Philip Boyd J.A.Kemp & Co. 14, South Square Gray's Inn London, WC1R 5EU / GB | Application number, filing date | 79301123.0 | 12.06.1979 | Priority number, date | US19780916917 | 19.06.1978 Original published format: US 916917 | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0006344 | Date: | 09.01.1980 | Language: | EN | [N/P] | Type: | B1 Patent specification | No.: | EP0006344 | Date: | 16.03.1983 | Language: | EN | [1983/11] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 23.10.1979 | Classification | IPC: | C08F14/26 | [1983/11] | CPC: |
C08F14/26 (EP,US);
Y10T428/31544 (EP,US)
| C-Set: |
C08F14/26, C08F2/16 (EP,US)
| Designated contracting states | DE, FR, GB, IT, NL | Title | German: | Verfahren zur wässrigen Dispersions-Polymerisation von Tetrafluoräthylen | English: | A process for the aqueous dispersion polymerization of tetrafluoroethylene | French: | Procédé pour la polymérisation du tétrafluoroéthylène en dispersion aqueuse | Examination procedure | 22.01.1980 | Examination requested [1980/08] | 20.07.1981 | Despatch of a communication from the examining division (Time limit: M04) | 30.10.1981 | Reply to a communication from the examining division | 19.04.1982 | Despatch of communication of intention to grant (Approval: ) | 14.07.1982 | Communication of intention to grant the patent | 11.09.1982 | Fee for grant paid | 11.09.1982 | Fee for publishing/printing paid | Opposition(s) | Opponent(s) | 01
14.12.1983
13.02.1984
ADMISSIBLE HOECHST AKTIENGESELLSCHAFT Werk Gendorf Patentbüro D-84504 Burgkirchen / DE | [1984/08] | 13.02.1984 | Invitation to proprietor to file observations on the notice of opposition | 19.06.1984 | Reply of patent proprietor to notice(s) of opposition | 18.09.1984 | Despatch of a communication from the opposition division (Time limit: M02) | 17.11.1984 | Reply to a communication from the opposition division | 05.06.1985 | Date of despatch of rejection of opposition | 16.06.1985 | Legal effect of rejection of opposition [1985/47] | Fees paid | Renewal fee | 19.06.1981 | Renewal fee patent year 03 | 12.06.1982 | 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 | US3391099 [ ] (OLIVER PUNDERSON JOHN); | US3032543 [ ] (ISAGER BRO MANVILLE, et al); | US2612434 [ ] (ROCKWELL PAUL O, et al) |