Global Patent Index - EP 1015919 A1

EP 1015919 A1 2000-07-05 - THIN CARBON COATING OF OPTICAL WAVEGUIDES

Title (en)

THIN CARBON COATING OF OPTICAL WAVEGUIDES

Title (de)

DÜNNE KOHLENSTOFFBESCHICHTUNG VON OPTISCHEN WELLENLEITERN

Title (fr)

COUCHE DE CARBONE MINCE POUR GUIDES D'ONDES OPTIQUES

Publication

EP 1015919 A1 (EN)

Application

EP 98926208 A

Priority

  • US 9811345 W
  • US 5055197 P

Abstract (en)

[origin: WO9859268A1] An optical waveguide fiber having a thin carbon coat (4) over the clad glass layer (2) is disclosed. The carbon coated waveguide shows superior dynamic fatigue resistance, improved adhesion of a polymer overcoat (6) in environmental testing, excellent attenuation stability in environmental testing, excellent attenuation stability in environmental testing, and easy colorability.

IPC 1-7 (main, further and additional classification)

G02B 6/02

IPC 8 full level (invention and additional information)

G02B 6/44 (2006.01); G02B 6/02 (2006.01)

CPC (invention and additional information)

G02B 6/02395 (2013.01)

Designated contracting state (EPC)

DE FR GB IT NL

EPO simple patent family

WO 9859268 A1 19981230; AU 728110 B2 20010104; AU 7810298 A 19990104; BR 9809521 A 20000620; CA 2291143 A1 19981230; CN 1260881 A 20000719; EP 1015919 A1 20000705; EP 1015919 A4 20030212; ID 25603 A 20001019; JP 2002508856 A 20020319; KR 20010014101 A 20010226

INPADOC legal status


2004-03-03 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030828

2003-06-04 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030417

2003-02-12 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20030102

2003-02-12 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: 7G 02B 6/02 A

2003-02-12 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: 7C 03C 25/10 B

2003-02-12 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: 7G 02B 6/44 B

2000-07-05 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000119

2000-07-05 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT NL