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EP0390575
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EP About this file: EP0390575
| EP0390575 - Aerobic waste sludge digester-thickener orbital system and method [Right-click to bookmark this link] | Status | The application is deemed to be withdrawn Status updated on 04.05.1993 Database last updated on 30.10.2024 | Most recent event Tooltip | 01.08.2008 | Change - applicant | published on 03.09.2008 [2008/36] | Applicant(s) | For all designated states BAKER HUGHES INCORPORATED 3900 Essex Lane Suite 1200 Houston TX 77027 / US | [2008/36] |
| Former [1990/40] | For all designated states BAKER-HUGHES INCORPORATED 3900 Essex Lane Suite 1200 P.O. Box 4740 Houston Texas 77210-4740 / US | Inventor(s) | 01 /
Di Gregorio, David 1670 Spring Run Drive Salt Lake City, Utah 84117 / US | 02 /
Eismin, Richard J. 6819 Pine View Circle Salt Lake City, Utah / US | 03 /
Riser, Frederick M. 8751 Alta Canyon Road Sandy, Utah 84070 / US | [1990/40] | Representative(s) | Hackett, Sean James Marks & Clerk LLP 90 Long Acre London WC2E 9RA / GB | [N/P] |
| Former [1990/40] | Hackett, Sean James MARKS & CLERK, 57-60 Lincoln's Inn Fields London WC2A 3LS / GB | Application number, filing date | 90303398.3 | 29.03.1990 | [1990/40] | Priority number, date | US19890330017 | 29.03.1989 Original published format: US 330017 | [1990/40] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0390575 | Date: | 03.10.1990 | Language: | EN | [1990/40] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 26.07.1990 | Classification | IPC: | C02F3/12, C02F11/02 | [1990/40] | CPC: |
C02F3/1257 (EP,US);
B01D21/06 (EP,US);
B01D21/2488 (EP,US);
Y02W10/10 (EP,US);
Y10S210/916 (EP,US);
Y10S210/926 (EP,US)
| Designated contracting states | AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LI, LU, NL, SE [1990/40] | Title | German: | Aerobes Umlaufsystem und Verfahren für Abbau und Eindickung von Überschussschlamm | [1990/40] | English: | Aerobic waste sludge digester-thickener orbital system and method | [1990/40] | French: | Système orbital aérobie et procédé pour la digestion et d'épaississement de boues en excès | [1990/40] | File destroyed: | 12.06.1999 | Examination procedure | 18.12.1990 | Examination requested [1991/07] | 01.07.1991 | Despatch of a communication from the examining division (Time limit: M06) | 02.01.1992 | Reply to a communication from the examining division | 21.04.1992 | Despatch of communication of intention to grant (Approval: Yes) | 27.08.1992 | Communication of intention to grant the patent | 08.12.1992 | Application deemed to be withdrawn, date of legal effect [1993/25] | 21.01.1993 | Despatch of communication that the application is deemed to be withdrawn, reason: fee for grant / fee for printing not paid in time [1993/25] | Fees paid | Renewal fee | 25.02.1992 | Renewal fee patent year 03 | Penalty fee | Additional fee for renewal fee | 31.03.1993 | 04 M06 Not yet paid |
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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 | [A]US3990974 (SULLINS JOHN K); | [A]GB1581432 (BOC LTD); | [A]EP0068916 (AIR LIQUIDE [FR]); | [AD]US4303516 (STENSEL H DAVID, et al) |