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Expired Canadian patentCanada

Haptic to optic attachment for a soft iol

CA 1283252 C · Owner: Pettit, Dean K. · Inventors: Van Gent, Stanley L.; Pettit, Dean K.; Bacich, Steven R.

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 method of making an intraocular lens including providing a fixation member having a proximal end portion with the proximal end portion including an elongated filament, converting a region of said filament at said proximal end portion from a first configuration into a second configuration which is adapted to provide a mechanical interlock and molding an optic about the proximal end portion of the fixation member to form a mechanical interlock between the second configuration and the optic and to attach the fixation member to the optic.

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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

  • Granted April 23, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 23, 2008.
  • 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 25, 1986
GrantedApril 23, 1991
Term endedApril 23, 2008
Patent numberCA 1283252 C
Classification (IPC)A61F2/16

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedNov 25, 1986Patent grantedApril 23, 1991Term endedApril 23, 2008

Sources & verification

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