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Expired Canadian patentCanada

Foldable intraocular lens and method of making

CA 2548735 C · Owner: Paul, Marlene L. · Inventors: Brady, Daniel G.; Shepherd, David J.; Paul, Marlene L.

CIPO record

Overview

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Abstract From the Canadian patent

A foldable intraocular lens(10) for providing vision contains an optic body (11) that includes an optical zone(12) and a peripheral zone (13) entirely surrounding the optical zone. The optic body has an anterior face (14) a , substantially opposing posterior face (18) an optic edge (20), and an optical , axis (22). The anterior face comprises a central face (24) a peripheral face , (28), and a recessed annular face (30) therebetween that is disposed posterior to the peripheral face. The intraocular lens further comprises at least one haptic (32) that is integrally formed with the peripheral zone. The haptic comprises a distal posterior face (34) a proximal prosterior face (38), and a …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed December 9, 2004 and granted November 13, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 9, 2024.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 9, 2004
GrantedNovember 13, 2012
Term endedDecember 9, 2024
Patent numberCA 2548735 C
Classification (IPC)A61F2/16

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedDec 9, 2004Patent grantedNov 13, 2012Term endedDec 9, 2024

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.