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EP0347120
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EP About this file: EP0347120
| EP0347120 - Optical data link dual wavelength coupler [Right-click to bookmark this link] | Status | The application has been withdrawn Status updated on 13.11.1992 Database last updated on 29.06.2024 | Most recent event Tooltip | 13.11.1992 | Withdrawal of application | published on 07.01.1993 [1993/01] | Applicant(s) | For all designated states AT&T Corp. 32 Avenue of the Americas New York, NY 10013-2412 / US | [1989/51] | Inventor(s) | 01 /
Schweizer, Rudolph Conrad 1334 Buck Trail Road Allentown Pennsylvania 18104 / US | [1989/51] | Representative(s) | Watts, Christopher Malcolm Kelway, et al Lucent Technologies (UK) Ltd, 5 Mornington Road Woodford Green Essex IG8 OTU / GB | [N/P] |
| Former [1989/51] | 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 | 89305850.3 | 09.06.1989 | [1989/51] | Priority number, date | US19880207342 | 15.06.1988 Original published format: US 207342 | [1989/51] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0347120 | Date: | 20.12.1989 | Language: | EN | [1989/51] | Type: | A3 Search report | No.: | EP0347120 | Date: | 06.03.1991 | Language: | EN | [1991/10] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 16.01.1991 | Classification | IPC: | G02B6/28, G02B6/42, H04J15/00 | [1989/51] | CPC: |
G02B6/29362 (EP,US);
G02B6/28 (KR);
G02B6/26 (KR);
G02B6/2937 (EP,US);
G02B6/4246 (EP,US)
| Designated contracting states | DE, ES, FR, GB, NL, SE [1989/51] | Title | German: | Zwei-Wellenlängen-Koppler für optische Datenübertragungsverbindung | [1989/51] | English: | Optical data link dual wavelength coupler | [1989/51] | French: | Coupleur à deux longueurs d'onde pour des lignes optiques de transmission de données | [1989/51] | File destroyed: | 12.06.1999 | Examination procedure | 31.08.1991 | Examination requested [1991/43] | 26.10.1992 | Application withdrawn by applicant [1993/01] | Fees paid | Renewal fee | 17.12.1990 | Renewal fee patent year 03 | 17.06.1992 | Renewal fee patent year 04 |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 | [X]JP61226713 ; | [X]JP62113114 ; | [A]DE3229570 (PHILIPS KOMMUNIKATIONS IND AG [DE]); | [X]EP0238977 (SIEMENS AG [DE]) | [X] - PATENT ABSTRACTS OF JAPAN, vol. 11, no. 62 (P-551)[2509], 25th February 1987; & JP-A-61 226 713 (HITACHI) 08-10-1986, & JP61226713 A 00000000 | [X] - PATENT ABSTRACTS OF JAPAN, vol. 11, no. 331 (P-630)[2778], 29th October 1987; & JP-A-62 113 114 (OKI ELECTRIC) 25-05-1987, & JP62113114 A 00000000 | [A] - REVIEW OF THE ELECTRICAL COMMUNICATIONS LABORATORIES, vol. 35, no. 5, September 1987, pages 521-527, Tokyo, JP; Y. TACHIKAWA et al.: "Three-channel wavelength-division-multiplexing transceiver module using LEDs for multimode fiber transmission systems" |