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Expired Canadian patentCanada

Intraocular lens folder

CA 2238968 C · Owner: Jensen, Lars D. · Inventors: Jensen, Lars D.; Van Noy, Stephen J.; Woo, Yi-Ren

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A single piece intraocular lens folder that has a generally planar open frame , in the shape of a rounded "A" with a rimmed open head at the top of the "A". , The base of the "A" forms a pair of opposing legs or handles that join to form a hinge at the intersection where the handles attach to the head. The hinge allows the handle to be squeezed together and spring apart when released. Squeezing the handles together causes the sides of the head to spread apart thereby stretching the top edge of the head rim and pulling the top edge downward toward the hinge. The open head contains a pair of support jaws and a pair of serpentine folding jaws. The location of the serpentine jaws is such …

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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 November 18, 1997 and granted January 21, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 18, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 18, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 18, 1997
GrantedJanuary 21, 2003
Term endedNovember 18, 2017
Patent numberCA 2238968 C
Classification (IPC)A61F9/00 +1 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedNov 18, 1997Patent grantedJan 21, 2003Term endedNov 18, 2017

Sources & verification

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