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EP0197635
European procedure
Extract from the Register of European Patents
EP About this file: EP0197635
| EP0197635 - Acrylic emulsion copolymers for thickening aqueous systems and copolymerizable surfactant monomers for use therein [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 17.09.1992 Database last updated on 03.05.2025 | Most recent event Tooltip | 12.11.1999 | Lapse of the patent in a contracting state New state(s): LU | published on 29.12.1999 [1999/52] | Applicant(s) | For all designated states National Starch and Chemical Investment Holding Corporation 501 Silverside Road Wilmington, Delaware 19809 / US | [1991/04] |
| Former [1986/42] | For all designated states Alco Chemical Corporation 909 Mueller Drive Chattanooga Tennessee 37406 / US | Inventor(s) | 01 /
Ruffner, Charles G. 1624 Berkley Circle Chattanooga Tennessee 37405 / US | 02 /
Wilkerson III, John M. 6436 Lake Meadows Drive Hixon Tennessee 37343 / US | [1986/42] | Representative(s) | Hale, Stephen Geoffrey, et al Bromhead Johnson 19 Buckingham Street London WC2N 6EF / GB | [N/P] |
| Former [1986/42] | Hale, Stephen Geoffrey, et al J.Y. & G.W. Johnson Furnival House 14/18 High Holborn London WC1V 6DE / GB | Application number, filing date | 86301099.7 | 18.02.1986 | [1986/42] | Priority number, date | US19850782571 | 01.10.1985 Original published format: US 782571 | US19850719768 | 04.04.1985 Original published format: US 719768 | [1986/42] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0197635 | Date: | 15.10.1986 | Language: | EN | [1986/42] | Type: | A3 Search report | No.: | EP0197635 | Date: | 19.08.1987 | Language: | EN | [1987/34] | Type: | B1 Patent specification | No.: | EP0197635 | Date: | 13.11.1991 | Language: | EN | [1991/46] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 29.06.1987 | Classification | IPC: | C08F246/00, C08F220/04, C08F222/00, C08F220/36, C09D7/00, C11D3/37, D21H19/20, C09K7/02 | [1991/46] | CPC: |
D21H19/58 (EP,US);
C08F220/04 (EP,US);
C08F246/00 (EP,US);
C08G18/8108 (EP,US);
C09D7/43 (EP,US);
C09K3/00 (EP,US);
C09K8/24 (EP,US);
C11D3/3765 (EP,US);
D06P1/525 (EP,US);
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| Former IPC [1986/42] | C08F246/00, C08F220/04, C08F222/00, C08F220/36, C09D7/00, C11D3/37, D21H1/28, C09K7/02, C09J3/14 | Designated contracting states | AT, BE, CH, DE, FR, GB, IT, LI, LU, NL, SE [1986/42] | Title | German: | Acrylatemulsionspolymere als Verdickungsmittel in wässrigen Systemen und copolymerisierbare monomere Emulgiermittel verwendbar in diesen Copolymeren | [1986/42] | English: | Acrylic emulsion copolymers for thickening aqueous systems and copolymerizable surfactant monomers for use therein | [1986/42] | French: | Copolymères acryliques en émulsion comme agent épaississant dans des systèmes aqueux et monomères émulsifiants copolymérisables utilisables dans ces copolymères | [1986/42] | Miscellaneous | EPB 1991/39: (deleted) | EPB 1986/42: A request pursuant to Rule 88 EPC for correction of the claims has been filed on 27.05.86. A decision on the request will be taken by the competent Examining Division. | Examination procedure | 16.01.1988 | Examination requested [1988/12] | 25.04.1989 | Despatch of a communication from the examining division (Time limit: M04) | 05.09.1989 | Reply to a communication from the examining division | 07.11.1989 | Despatch of a communication from the examining division (Time limit: M06) | 20.04.1990 | Reply to a communication from the examining division | 12.12.1990 | Despatch of communication of intention to grant (Approval: No) | 15.03.1991 | Despatch of communication of intention to grant (Approval: later approval) | 22.03.1991 | Communication of intention to grant the patent | 05.06.1991 | Fee for grant paid | 05.06.1991 | Fee for publishing/printing paid | Opposition(s) | 14.08.1992 | No opposition filed within time limit [1992/46] | Fees paid | Renewal fee | 13.02.1988 | Renewal fee patent year 03 | 11.02.1989 | Renewal fee patent year 04 | 12.02.1990 | Renewal fee patent year 05 | 14.02.1991 | Renewal fee patent year 06 |
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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 | AT | 13.11.1991 | CH | 13.11.1991 | LI | 13.11.1991 | SE | 13.11.1991 | LU | 29.02.1992 | [1999/52] |
| Former [1992/29] | AT | 13.11.1991 | |
| CH | 13.11.1991 | ||
| LI | 13.11.1991 | ||
| SE | 13.11.1991 | ||
| Former [1992/26] | CH | 13.11.1991 | |
| LI | 13.11.1991 | ||
| SE | 13.11.1991 | ||
| Former [1992/24] | SE | 13.11.1991 | Documents cited: | Search | [A]US4384096 (SONNABEND LAWRENCE F) | Examination | EP1073109 |