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EP0503849
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EP About this file: EP0503849
| EP0503849 - Photonic cross-connect switch [Right-click to bookmark this link] | Status | The application has been withdrawn Status updated on 12.09.1997 Database last updated on 08.04.2026 | Most recent event Tooltip | 12.09.1997 | Withdrawal of application | published on 29.10.1997 [1997/44] | Applicant(s) | For all designated states AT&T Corp. 32 Avenue of the Americas New York, NY 10013-2412 / US | [1992/38] | Inventor(s) | 01 /
Fatehi, Mohammad T. 5 Sylvia Terrace Middletown, New Jersey 07748 / US | 02 /
Srinivasan, Nattu V. 34 Carmel Way Eatontown, New Jersey 07724 / US | [1992/38] | Representative(s) | Watts, Christopher Malcolm Kelway, et al Lucent Technologies (UK) Ltd, 5 Mornington Road Woodford Green Essex IG8 OTU / GB | [N/P] |
| Former [1992/38] | 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 | 92301921.0 | 06.03.1992 | [1992/38] | Priority number, date | US19910669840 | 15.03.1991 Original published format: US 669840 | [1992/38] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0503849 | Date: | 16.09.1992 | Language: | EN | [1992/38] | Type: | A3 Search report | No.: | EP0503849 | Date: | 30.03.1994 | Language: | EN | [1994/13] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 14.02.1994 | Classification | IPC: | H04Q3/52, G02B6/28, G02F1/00 | [1992/38] | CPC: |
G02B6/28 (EP,US)
| Designated contracting states | DE, FR, GB, IT [1992/38] | Title | German: | Photonischer Verzweigerschalter | [1992/38] | English: | Photonic cross-connect switch | [1992/38] | French: | Commutateur de brassage photonique | [1992/38] | Examination procedure | 15.09.1994 | Examination requested [1994/46] | 30.08.1997 | Application withdrawn by applicant [1997/44] | Fees paid | Renewal fee | 08.03.1994 | Renewal fee patent year 03 | 20.03.1995 | Renewal fee patent year 04 | 18.03.1996 | Renewal fee patent year 05 | 06.03.1997 | 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] JPH02291531 | [XA] Y. SATO ET AL: "An Erbium-Doped Fiber Active Switch Controlled by Coded Pump Light", PHOTONICS II, PROCEEDINGS OF THE INTERNATIONAL TOPICAL MEETING, 12-14 APRIL 1990, PAGES 122-125, KOBE JP, XP000333141 [X] 1-4 * the whole document *[A] 5-18 | [A] S. SUZUKI ET AL: "A 32-Line Optical Space-Division Switching System Using 8X8 Optical Matrix Switches", NEC RESEARCH AND DEVELOPMENT, no. 87, October 1987 (1987-10-01), TOKYO JP, pages 44 - 49, XP000047929 [A] 7,10 * page 46, column R, line 7 - page 47, column L, line 18; figures 6-9 * | [A] K. NAKAGAWA: "Role of Optical Amplifiersin Realizing All-Optical Communication Networks", PHOTONICS II, PROCEEDINGS OF THE INTERNATIONAL TOPICAL MEETING, 12-14 APRIL 1990, PAGES 14-22, KOBE JP, XP000333119 [A] 1-18 * abstract * * page 20, line 8 - line 16; figures 7,8 * | [A] PATENT ABSTRACTS OF JAPAN vol. 015, no. 067 (P - 1167) 18 February 1991 (1991-02-18) [A] 1-18 * abstract * | [A] J.D. EVANKOW ET AL: "Photonic Switching Modules Designed with Laser Diode Amplifiers", IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATION, vol. 6, no. 7, August 1988 (1988-08-01), NEW YORK US, pages 1087 - 1095, XP000004676 [A] 1-18 * abstract * DOI: http://dx.doi.org/10.1109/49.7829 | [A] G.R. HILL ET AL: "Wavelength Routing for Long Haul Networks", CONFERENCE RECORD, IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, 11-14 JUNE 1989, PAGES 734-738, BOSTON US, XP000075239 [A] 1-18 * abstract * * page 735, column R, line 35 - page 736, column L, line 5; figures 5-7 * |