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EP0245008
European procedure
Extract from the Register of European Patents
EP About this file: EP0245008
| EP0245008 - A rotary valve for granular or particulate material [Right-click to bookmark this link] | Status | Patent revoked Status updated on 12.06.1991 Database last updated on 28.03.2026 | Most recent event Tooltip | 12.06.1991 | Revocation of patent | published on 31.07.1991 [1991/31] | Applicant(s) | For all designated states WESTINGHOUSE BRAKE AND SIGNAL HOLDINGS LIMITED Pew Hill Chippenham Wiltshire / GB | [N/P] |
| Former [1989/09] | For all designated states WESTINGHOUSE BRAKE AND SIGNAL HOLDINGS LIMITED Pew Hill Chippenham Wiltshire / GB | ||
| Former [1987/46] | For all designated states WESTINGHOUSE BRAKE AND SIGNAL COMPANY LIMITED Pew Hill Chippenham Wiltshire / GB | Inventor(s) | 01 /
Bye, Leonard James 3 Sadlers Mead Chippenham Wiltshire / GB | [1987/46] | Representative(s) | Newstead, Michael John, et al Page Hargrave Southgate Whitefriars Lewins Mead Bristol BS1 2NT / GB | [N/P] |
| Former [1987/46] | Newstead, Michael John, et al Page Hargrave Temple Gate House Temple Gate Bristol BS1 6PL / GB | Application number, filing date | 87303775.8 | 28.04.1987 | [1987/46] | Priority number, date | GB19860010728 | 01.05.1986 Original published format: GB 8610728 | [1987/46] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0245008 | Date: | 11.11.1987 | Language: | EN | [1987/46] | Type: | A3 Search report | No.: | EP0245008 | Date: | 27.07.1988 | Language: | EN | [1988/30] | Type: | B1 Patent specification | No.: | EP0245008 | Date: | 29.11.1989 | Language: | EN | [1989/48] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 06.06.1988 | Classification | IPC: | B65G53/40, B65G53/46 | [1988/27] | CPC: |
B65G53/4633 (EP)
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| Former IPC [1987/46] | B65G53/46 | Designated contracting states | DE, FR, NL [1987/46] | Title | German: | Zellenradschleuse für körniges oder pulverförmiges Schüttgut | [1987/46] | English: | A rotary valve for granular or particulate material | [1987/46] | French: | Vanne rotative pour matériaux granulés ou pulvérulents | [1987/46] | Examination procedure | 26.09.1988 | Examination requested [1988/47] | 23.11.1988 | Despatch of a communication from the examining division (Time limit: M04) | 07.03.1989 | Reply to a communication from the examining division | 03.04.1989 | Despatch of communication of intention to grant (Approval: Yes) | 18.05.1989 | Communication of intention to grant the patent | 09.08.1989 | Fee for grant paid | 09.08.1989 | Fee for publishing/printing paid | Opposition(s) | Opponent(s) | 01
02.01.1990
04.10.1990
ADMISSIBLE Gebrüder Bühler AG CH-9240 Uzwil / CH | [1990/10] | 08.10.1990 | Invitation to proprietor to file observations on the notice of opposition | 19.02.1991 | Reply of patent proprietor to notice(s) of opposition | 01.03.1991 | Despatch of communication that the patent will be revoked | 11.03.1991 | Legal effect of revocation of patent [1991/31] | Fees paid | Renewal fee | 25.04.1989 | Renewal fee patent year 03 |
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