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EP0412836
European procedure
Extract from the Register of European Patents
EP About this file: EP0412836
| EP0412836 - Step chain for curved escalator [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 19.01.1995 Database last updated on 18.03.2026 | Most recent event Tooltip | 19.01.1995 | No opposition filed within time limit | published on 08.03.1995 [1995/10] | Applicant(s) | For all designated states Otis Elevator Company 10 Farm Springs Road Farmington, CT 06032 / US | [N/P] |
| Former [1991/07] | For all designated states OTIS ELEVATOR COMPANY 10 Farm Springs Farmington, CT 06032 / US | Inventor(s) | 01 /
Johnson, Gerald 15 Lilac Lane Farmington, Connecticut 06032 / US | [1991/07] | Representative(s) | Butler, Michael John, et al Dehns St Bride's House 10 Salisbury Square London EC4Y 8JD / GB | [N/P] |
| Former [1993/28] | Butler, Michael John, et al FRANK B. DEHN & CO. Imperial House 15-19 Kingsway London, WC2B 6UZ / GB | ||
| Former [1991/07] | Boyes, Kenneth Aubrey Frank B. Dehn & Co. Imperial House 15-19 Kingsway London WC2B 6UZ / GB | Application number, filing date | 90308816.9 | 10.08.1990 | [1991/07] | Priority number, date | US19890391893 | 10.08.1989 Original published format: US 391893 | [1991/07] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0412836 | Date: | 13.02.1991 | Language: | EN | [1991/07] | Type: | B1 Patent specification | No.: | EP0412836 | Date: | 16.03.1994 | Language: | EN | [1994/11] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 07.11.1990 | Classification | IPC: | B66B21/06 | [1991/07] | CPC: |
B66B21/06 (EP,US)
| Designated contracting states | DE, FR, GB [1991/07] | Title | German: | Stufenkette für Bogenrolltreppe | [1991/07] | English: | Step chain for curved escalator | [1991/07] | French: | Courroie de marchepied d'un escalier roulant courbé | [1991/07] | Examination procedure | 28.03.1991 | Examination requested [1991/22] | 05.11.1992 | Despatch of a communication from the examining division (Time limit: M06) | 17.05.1993 | Reply to a communication from the examining division | 19.07.1993 | Despatch of communication of intention to grant (Approval: No) | 31.08.1993 | Despatch of communication of intention to grant (Approval: later approval) | 03.09.1993 | Communication of intention to grant the patent | 10.12.1993 | Fee for grant paid | 10.12.1993 | Fee for publishing/printing paid | Opposition(s) | 17.12.1994 | No opposition filed within time limit [1995/10] | Fees paid | Renewal fee | 24.08.1992 | Renewal fee patent year 03 | 24.08.1993 | Renewal fee patent year 04 |
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