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EP0615321
European procedure
Extract from the Register of European Patents
EP About this file: EP0615321
| EP0615321 - Article comprising a wavelength-stabilized semiconductor laser [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 08.05.1998 Database last updated on 24.08.2024 | Most recent event Tooltip | 08.05.1998 | No opposition filed within time limit | published on 24.06.1998 [1998/26] | Applicant(s) | For all designated states AT&T Corp. 32 Avenue of the Americas New York, NY 10013-2412 / US | [1994/40] |
| Former [1994/37] | For all designated states AT&T Corp. 32 Avenue of the Americas New York, NY 10013-2412 / US | Inventor(s) | 01 /
Koch, Thomas Lawson 12 Donner Street Holmdel, New Jersey 07733 / US | 02 /
Woodward, Sheryl Leigh 84 Leedsville Drive Lincroft, New Jersey 07738 / US | [1994/37] | Representative(s) | Watts, Christopher Malcolm Kelway, et al Lucent Technologies (UK) Ltd, 5 Mornington Road Woodford Green Essex IG8 OTU / GB | [N/P] |
| Former [1994/37] | Watts, Christopher Malcolm Kelway, Dr., et al AT&T (UK) LTD. AT&T Intellectual Property Division 5 Mornington Road Woodford Green Essex IG8 OTU / GB | Application number, filing date | 94301489.4 | 02.03.1994 | [1994/37] | Priority number, date | US19930028881 | 10.03.1993 Original published format: US 28881 | [1994/37] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0615321 | Date: | 14.09.1994 | Language: | EN | [1994/37] | Type: | A3 Search report | No.: | EP0615321 | Date: | 21.12.1994 | Language: | EN | [1994/51] | Type: | B1 Patent specification | No.: | EP0615321 | Date: | 02.07.1997 | Language: | EN | [1997/27] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 04.11.1994 | Classification | IPC: | H01S3/103, H01S3/133, H01S3/043, H04B10/00 | [1994/37] | CPC: |
H01S5/0687 (EP,US);
H01S5/02415 (EP,US);
H01S5/06256 (EP,US);
H01S5/06837 (EP,US)
| Designated contracting states | DE, FR, GB [1994/37] | Title | German: | Vorrichtung mit einem wellenlängen stabilisiertem Halbleiterlaser | [1994/37] | English: | Article comprising a wavelength-stabilized semiconductor laser | [1994/37] | French: | Dispositif ayant un laser à semi-conducteur stabilisé en longeur d'onde | [1994/37] | Examination procedure | 08.06.1995 | Examination requested [1995/32] | 22.07.1996 | Despatch of communication of intention to grant (Approval: Yes) | 21.08.1996 | Communication of intention to grant the patent | 31.10.1996 | Fee for grant paid | 31.10.1996 | Fee for publishing/printing paid | Opposition(s) | 03.04.1998 | No opposition filed within time limit [1998/26] | Fees paid | Renewal fee | 18.03.1996 | Renewal fee patent year 03 | 06.03.1997 | Renewal fee patent year 04 |
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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]JPS6418286 ; | [A]JPS6189527 ; | [A]US4583228 (BROWN MICHAEL G [US], et al) [A] 1 * column 1, line 55 - column 4, line 2; figure 1 *; | [A]EP0284908 (SIEMENS AG [DE]) [A] 1-8 * column 1, line 29 - column 7, line 44; figures 1,2 *; | [Y]GB2226127 (STC PLC [GB]) [Y] 1,5-8 * page 3, line 25 - page 5, line 26; figures 1-5 *; | [DA]EP0436202 (UNITED TECHNOLOGIES CORP [US]) [DA] 1-5 * column 2, line 7 - column 4, line 27 * * column 7, line 7 - column 8, line 20 * * column 8, line 47 - column 9, line 4; figures 2,3 *; | [YA] - M. SCHIENLE ET AL., "A Frequency Stabilization Arrangement for Dense Wavelength Division Multiplexing Systems", IEEE PHOTONICS TECHNOLOGY LETTERS, NEW YORK, US, (199205), vol. 4, no. 5, pages 507 - 509, XP000272638 [Y] 1,5-8 * the whole document * [A] 2-4 DOI: http://dx.doi.org/10.1109/68.136503 | [A] - PATENT ABSTRACTS OF JAPAN, (19890510), vol. 13, no. 196, Database accession no. (E - 755)<3544>, & JP01018286 A 19890123 (NEC) [A] 1 * abstract * | [A] - PATENT ABSTRACTS OF JAPAN, (19860909), vol. 10, no. 264, Database accession no. (P - 495)<2320>, & JP61089527 A 19860507 (NEC) [A] 1,6 * abstract * |