Global Patent Index - EP 0944471 A4

EP 0944471 A4 2001-04-04 - OPTICAL LENS PREFORMS

Title (en)

OPTICAL LENS PREFORMS

Title (de)

OPTISCHE LINSENVORFORMLINGE

Title (fr)

PREFORME POUR LENTILLES OPTIQUES

Publication

EP 0944471 A4 (EN)

Application

EP 97908998 A

Priority

  • US 9703766 W
  • US 61533696 A

Abstract (en)

[origin: WO9733742A1] An optical preform (10) composed of an optical article, such as a single vision lens, is provided with an adjacent layer of a partially hardened resin (20). The adjacent layer (20) can be conformed to a mold (30) and further hardened to modify the optical properties of the preform (10). In addition, the partially hardened resin layer (20) can be initially placed on the optical article (10) prior to positioning the optical article against the mold (30). Alternatively, the partially hardened resin layer (20) can be initially placed on the surface of the mold (30) prior to positioning the optical article (10) against the mold (30).

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

B29D 11/00

IPC 8 full level (invention and additional information)

B29C 39/10 (2006.01); B29D 11/00 (2006.01); G02C 7/02 (2006.01); B29L 11/00 (2006.01)

CPC (invention and additional information)

B29D 11/0073 (2013.01); B29L 2011/0033 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE ES FR GB IE IT NL

EPO simple patent family

WO 9733742 A1 19970918; AU 2075597 A 19971001; AU 734592 B2 20010621; BR 9709442 A 19990810; CA 2248832 A1 19970918; CN 1214007 A 19990414; CN 1322620 A 20011121; EA 199800815 A1 19990429; EP 0944471 A1 19990929; EP 0944471 A4 20010404; IL 126125 D0 19990509; JP 2000506794 A 20000606

INPADOC legal status


2003-04-02 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20020716

2002-04-17 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020304

2001-04-04 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20010216

2001-04-04 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

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

1999-09-29 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19981009

1999-09-29 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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