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EP0539119
European procedure
Extract from the Register of European Patents
EP About this file: EP0539119
| EP0539119 - Compensated laser structure for analog communication applications [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 01.11.1995 Database last updated on 30.03.2026 | Most recent event Tooltip | 01.11.1995 | No opposition filed within time limit | published on 20.12.1995 [1995/51] | Applicant(s) | For all designated states AT&T Corp. 32 Avenue of the Americas New York, NY 10013-2412 / US | [1994/40] |
| Former [1993/17] | For all designated states AT&T Corp. 32 Avenue of the Americas New York, NY 10013-2412 / US | Inventor(s) | 01 /
Bergmann, Ernest Eisenhardt 730 Seneca Street, Bethlehem Borough of Fountain Hill, Pennsylvania 18015 / US | [1993/17] | Representative(s) | Watts, Christopher Malcolm Kelway, et al Lucent Technologies (UK) Ltd, 5 Mornington Road Woodford Green Essex, IG8 0TU / GB | [N/P] |
| Former [1993/17] | Watts, Christopher Malcolm Kelway, Dr., et al AT&T (UK) Ltd. 5, Mornington Road Woodford Green Essex, IG8 0TU / GB | Application number, filing date | 92309466.8 | 16.10.1992 | [1993/17] | Priority number, date | US19910781540 | 22.10.1991 Original published format: US 781540 | [1993/17] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0539119 | Date: | 28.04.1993 | Language: | EN | [1993/17] | Type: | B1 Patent specification | No.: | EP0539119 | Date: | 28.12.1994 | Language: | EN | [1994/52] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 02.03.1993 | Classification | IPC: | H01S3/096, H04B10/18 | [1993/17] | CPC: |
H04B10/504 (EP,US);
H01S5/06213 (EP,US);
H04B10/58 (EP,US);
H01S5/0035 (EP,US);
H01S5/0427 (EP,US);
H01S5/227 (EP,US);
H01S5/2275 (EP,US)
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| Designated contracting states | DE, FR, GB, IT [1993/17] | Title | German: | Kompensierte Laserstruktur für analoge Übertragungssysteme | [1994/52] | English: | Compensated laser structure for analog communication applications | [1993/17] | French: | Structure de laser compensé pour applications de communication analogique | [1993/17] |
| Former [1993/17] | Kompensierter Laserstruktur für analoge Übertragungssysteme | Examination procedure | 18.10.1993 | Examination requested [1993/50] | 11.04.1994 | Despatch of communication of intention to grant (Approval: Yes) | 19.05.1994 | Communication of intention to grant the patent | 28.07.1994 | Fee for grant paid | 28.07.1994 | Fee for publishing/printing paid | Opposition(s) | 29.09.1995 | No opposition filed within time limit [1995/51] | Fees paid | Renewal fee | 14.10.1994 | Renewal fee patent year 03 |
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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] ELECTRONICS LETTERS. vol. 23, no. 25, 3 December 1987, STEVENAGE, HERTS, GB pages 1354 - 1356 D. E. ACKLEY 'Equivalent circuit modelling and derivative characterisation of 1.3 mum injection lasers' [A] | [A] IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES vol. 38, no. 5, May 1990, NEW YORK US pages 673 - 675 A. GHIASI ET AL 'novel bandwidth matching technique for laserdiodes' [A] | [AD] JOURNAL OF LIGHTWAVE TECHNOLOGY. vol. LT-1, no. 1, March 1983, NEW YORK US pages 195 - 202 I. MITO ET AL 'InGaAsP double channel planar buried heterostructure laser diode (DC-PBH LD) with effective current confinement' [AD] |