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EP0197691
European procedure
Extract from the Register of European Patents
EP About this file: EP0197691
| EP0197691 - Automatic focus for overhead projector [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 31.10.1991 Database last updated on 03.09.2024 | Most recent event Tooltip | 07.03.1997 | Lapse of the patent in a contracting state | published on 23.04.1997 [1997/17] | Applicant(s) | For all designated states MINNESOTA MINING AND MANUFACTURING COMPANY 3M Center, P.O. Box 33427 St. Paul, MN 55133-3427 / US | [N/P] |
| Former [1986/42] | For all designated states MINNESOTA MINING AND MANUFACTURING COMPANY 3M Center, P.O. Box 33427 St. Paul, Minnesota 55133-3427 / US | Inventor(s) | 01 /
Dreyer, John F., Jr. c/o Minnesota Mining and Manufacturing Company 2501 Hudson Road St. Paul Minnesota 55133-3427 / US | [1986/42] | Representative(s) | Baillie, Iain Cameron, et al Ladas & Parry, Dachauerstrasse 37 80335 München / DE | [N/P] |
| Former [1986/42] | Baillie, Iain Cameron, et al c/o Ladas & Parry Altheimer Eck 2 D-80331 München / DE | Application number, filing date | 86302127.5 | 21.03.1986 | [1986/42] | Priority number, date | US19850718214 | 01.04.1985 Original published format: US 718214 | [1986/42] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0197691 | Date: | 15.10.1986 | Language: | EN | [1986/42] | Type: | B1 Patent specification | No.: | EP0197691 | Date: | 27.12.1990 | Language: | EN | [1990/52] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 19.08.1986 | Classification | IPC: | G03B21/132 | [1986/42] | CPC: |
G03B21/132 (EP,US);
Y10S353/06 (EP,US)
| Designated contracting states | DE, FR, GB, IT [1986/42] | Title | German: | Automatische Fokussierung für einen Retroprojektor | [1986/42] | English: | Automatic focus for overhead projector | [1986/42] | French: | Focalisation automatique pour rétroprojecteur | [1986/42] | Examination procedure | 08.04.1987 | Examination requested [1987/24] | 24.07.1989 | Despatch of a communication from the examining division (Time limit: M06) | 17.01.1990 | Reply to a communication from the examining division | 16.02.1990 | Despatch of communication of intention to grant (Approval: Yes) | 11.06.1990 | Communication of intention to grant the patent | 18.07.1990 | Fee for grant paid | 18.07.1990 | Fee for publishing/printing paid | Opposition(s) | 28.09.1991 | No opposition filed within time limit [1991/51] | Fees paid | Renewal fee | 11.02.1988 | Renewal fee patent year 03 | 14.02.1989 | Renewal fee patent year 04 | 28.02.1990 | 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 | [YD]DE3136970 (LIESEGANG FA ED [DE]); | [Y]DE3010497 (LIESEGANG FA ED [DE]); | [A]DE2420456 (RITZERFELD GERHARD); | [A]FR2197475 (RITZERFELD GERHARD [DE]); | [A]GB990930 (ASS ELECT IND); | [A]US3472589 (FIELD PHILIP M); | [A]GB1391693 (GAKKEN CO LTD) |