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EP0129053
European procedure
Extract from the Register of European Patents
EP About this file: EP0129053
| EP0129053 - Vertically tiered particle filtering apparatus [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 10.01.1989 Database last updated on 08.04.2026 | Most recent event Tooltip | 10.01.1989 | No opposition filed within time limit | published on 01.03.1989 [1989/09] | Applicant(s) | For all designated states ELECTRIC POWER RESEARCH INSTITUTE, INC 3412 Hillview Avenue Palo Alto, CA 94303 / US | [N/P] |
| Former [1984/52] | For all designated states ELECTRIC POWER RESEARCH INSTITUTE, INC 3412 Hillview Avenue Palo Alto California 94303 / US | Inventor(s) | 01 /
Tassicker, Owen J. 10467 Mary Avenue Cupertino California 95014 / US | [1984/52] | Representative(s) | Wilhelms, Rolf E., et al WILHELMS, KILIAN & PARTNER Patentanwälte Eduard-Schmid-Strasse 2 81541 München / DE | [N/P] |
| Former [1985/45] | Wilhelms, Rolf E., Dr., et al WILHELMS, KILIAN & PARTNER Patentanwälte Eduard-Schmid-Strasse 2 D-81541 München / DE | ||
| Former [1985/44] | Wilhelms, Rolf E., Dr. WILHELMS, KILIAN & PARTNER Patentanwälte Eduard-Schmid-Strasse 2 D-81541 München / DE | ||
| Former [1984/52] | WILHELMS, KILIAN & PARTNER Patentanwälte Eduard-Schmid-Strasse 2 D-81541 München / DE | Application number, filing date | 84105459.6 | 14.05.1984 | [1984/52] | Priority number, date | US19830496520 | 20.05.1983 Original published format: US 496520 | [1984/52] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0129053 | Date: | 27.12.1984 | Language: | EN | [1984/52] | Type: | A3 Search report | No.: | EP0129053 | Date: | 17.04.1985 | Language: | EN | [1985/16] | Type: | B1 Patent specification | No.: | EP0129053 | Date: | 02.03.1988 | Language: | EN | [1988/09] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 14.02.1985 | Classification | IPC: | B01D46/02, B01D46/24 | [1984/52] | CPC: |
B01D46/04 (EP,US);
B01D46/0009 (EP,US);
B01D46/48 (EP,US);
B01D46/58 (EP,US);
B01D46/71 (EP,US);
B01D2201/313 (EP,US)
| Designated contracting states | AT, BE, CH, DE, FR, GB, IT, LI, NL, SE [1984/52] | Title | German: | Vertikal gestaffelter Teilchenfilter | [1984/52] | English: | Vertically tiered particle filtering apparatus | [1984/52] | French: | Filtre de particules à étages | [1984/52] | Examination procedure | 04.06.1985 | Examination requested [1985/33] | 25.02.1986 | Despatch of a communication from the examining division (Time limit: M06) | 08.09.1986 | Reply to a communication from the examining division | 05.11.1986 | Despatch of a communication from the examining division (Time limit: M04) | 13.03.1987 | Reply to a communication from the examining division | 19.06.1987 | Despatch of communication of intention to grant (Approval: ) | 20.08.1987 | Communication of intention to grant the patent | 20.11.1987 | Fee for grant paid | 20.11.1987 | Fee for publishing/printing paid | Opposition(s) | 05.12.1988 | No opposition filed within time limit [1989/09] | Fees paid | Renewal fee | 28.05.1986 | Renewal fee patent year 03 | 29.05.1987 | Renewal fee patent year 04 |
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