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EP0246916
European procedure
Extract from the Register of European Patents
EP About this file: EP0246916
| EP0246916 - Boundary layer flow control [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 24.04.1993 Database last updated on 22.08.2024 | Most recent event Tooltip | 24.04.1993 | No opposition filed within time limit | published on 16.06.1993 [1993/24] | Applicant(s) | For all designated states Rolls-Royce plc 65 Buckingham Gate London, SW1E 6AT / GB | [N/P] |
| Former [1987/48] | For all designated states ROLLS-ROYCE plc 65 Buckingham Gate London, SW1E 6AT / GB | Inventor(s) | 01 /
Savill, Anthony Mark 46 Histon Road Cambridge / GB | [1987/48] | Representative(s) | Dargavel, Laurence Peter Rolls-Royce plc Patents Department P.O. Box 31 Moor Lane Derby DE2 8BJ / GB | [N/P] |
| Former [1987/48] | Dargavel, Laurence Peter Rolls-Royce plc Patents Department P.O. Box 31 Moor Lane Derby DE2 8BJ / GB | Application number, filing date | 87304579.3 | 22.05.1987 | [1987/48] | Priority number, date | GB19860012487 | 22.05.1986 Original published format: GB 8612487 | GB19870006554 | 19.03.1987 Original published format: GB 8706554 | [1987/48] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0246916 | Date: | 25.11.1987 | Language: | EN | [1987/48] | Type: | B1 Patent specification | No.: | EP0246916 | Date: | 24.06.1992 | Language: | EN | [1992/26] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 29.09.1987 | Classification | IPC: | B64C21/10, B63B1/34 | [1987/48] | CPC: |
B63B1/34 (EP);
B64C21/10 (EP);
B64C2230/26 (EP);
Y02T50/10 (EP);
Y02T70/10 (EP)
| Designated contracting states | DE, FR, GB, SE [1987/48] | Title | German: | Grenzschichtdurchflussregelung | [1987/48] | English: | Boundary layer flow control | [1987/48] | French: | Contrôle du débit de la couche limite | [1987/48] | Examination procedure | 12.05.1988 | Examination requested [1988/28] | 16.02.1989 | Despatch of a communication from the examining division (Time limit: M04) | 20.05.1989 | Reply to a communication from the examining division | 06.09.1989 | Despatch of a communication from the examining division (Time limit: M04) | 28.12.1989 | Reply to a communication from the examining division | 22.03.1990 | Despatch of a communication from the examining division (Time limit: M04) | 17.07.1990 | Reply to a communication from the examining division | 30.04.1991 | Despatch of a communication from the examining division (Time limit: M04) | 27.08.1991 | Reply to a communication from the examining division | 08.11.1991 | Despatch of communication of intention to grant (Approval: No) | 22.11.1991 | Despatch of communication of intention to grant (Approval: later approval) | 29.11.1991 | Communication of intention to grant the patent | 18.12.1991 | Fee for grant paid | 18.12.1991 | Fee for publishing/printing paid | Opposition(s) | 25.03.1993 | No opposition filed within time limit [1993/24] | Fees paid | Renewal fee | 18.05.1989 | Renewal fee patent year 03 | 10.04.1990 | Renewal fee patent year 04 | 15.04.1991 | Renewal fee patent year 05 | 09.04.1992 | Renewal fee patent year 06 |
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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 | [AP]EP0216384 (MESSERSCHMITT BOELKOW BLOHM [DE]); | [AP]EP0205289 (MINNESOTA MINING & MFG [US]) | [A] - AIAA'83 21st AEROSPACE SCIENCES MEETING, Reno, Nevada, 10th-13th January 1983, pages 6,18, American Institute of Aeronautics and Astronautics, New York, US; D.M. BUSHNELL: "Turbulent drag reduction for external flows" | [A] - MECHANICAL ENGINEERING, vol. 103, no. 3, March 1981, page 71, New York, US; "Grooves reduce aircraft drag" |