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EP0422956
European procedure
Extract from the Register of European Patents
EP About this file: EP0422956
| EP0422956 - Multiple beam exposure control [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 04.07.1997 Database last updated on 19.03.2026 | Most recent event Tooltip | 04.07.1997 | No opposition filed within time limit | published on 20.08.1997 [1997/34] | Applicant(s) | For all designated states Xerox Corporation Xerox Square Rochester New York 14644 / US | [N/P] |
| Former [1991/16] | For all designated states XEROX CORPORATION Xerox Square Rochester New York 14644 / US | Inventor(s) | 01 /
MacArthur, Thomas D. 3570 Landfair Road Pasadena, CA 91107 / US | [1991/16] | Representative(s) | Johnson, Reginald George, et al Rank Xerox Ltd Patent Department Parkway Marlow Buckinghamshire SL7 1YL / GB | [N/P] |
| Former [1996/35] | Johnson, Reginald George, et al Rank Xerox Ltd Patent Department Parkway Marlow Buckinghamshire SL7 1YL / GB | ||
| Former [1991/16] | Weatherald, Keith Baynes, et al Rank Xerox Ltd Patent Department Parkway Marlow Buckinghamshire SL7 1YL / GB | Application number, filing date | 90311223.3 | 12.10.1990 | [1991/16] | Priority number, date | US19890421227 | 13.10.1989 Original published format: US 421227 | [1991/16] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0422956 | Date: | 17.04.1991 | Language: | EN | [1991/16] | Type: | A3 Search report | No.: | EP0422956 | Date: | 27.05.1992 | Language: | EN | [1992/22] | Type: | B1 Patent specification | No.: | EP0422956 | Date: | 28.08.1996 | Language: | EN | [1996/35] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 03.04.1992 | Classification | IPC: | H04N1/036, G02F1/11 | [1991/16] | CPC: |
G02F1/11 (EP,US);
H04N1/036 (EP,US)
| Designated contracting states | DE, FR, GB, IT [1991/16] | Title | German: | Belichtungssteuerung durch mehrere Strahlen | [1991/16] | English: | Multiple beam exposure control | [1991/16] | French: | Contrôle d'exposition par faisceau multiple | [1991/16] | Examination procedure | 05.11.1992 | Examination requested [1992/53] | 12.09.1994 | Despatch of a communication from the examining division (Time limit: M06) | 16.03.1995 | Reply to a communication from the examining division | 12.02.1996 | Despatch of communication of intention to grant (Approval: Yes) | 13.06.1996 | Fee for grant paid | 13.06.1996 | Fee for publishing/printing paid | 24.06.1996 | Communication of intention to grant the patent | Opposition(s) | 29.05.1997 | No opposition filed within time limit [1997/34] | Fees paid | Renewal fee | 25.09.1992 | Renewal fee patent year 03 | 28.09.1993 | Renewal fee patent year 04 | 30.09.1994 | Renewal fee patent year 05 | 31.10.1995 | 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 | [A] JP59074755 | [A] PATENT ABSTRACTS OF JAPAN vol. 8, no. 185 (E-262)(1622) 24 August 1984 & JP-A-59 074 755 ( OLYMPUS KOGAKU KOGYO ) 27 April 1984 [A] |