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Canadian application, no grantCanada

Uveoscleral drainage device

CA 2744117 A1 · Owner: Yale University · Inventors: Shields, Milton B.

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 use of a ophthalmic shunt implantable in an eye having an elongate body and a , conduit for conducting aqueous humor from an anterior chamber of the eye to the , suprachoroidal space of the eye, for treating glaucoma and lowering eye pressure. The , elongate body has a forward end and an insertion head that extends from the forward end. , The insertion head defines a shearing edge suitable for cutting eye tissue engage thereby. , The forward end and the insertion head of the body define a shoulder surface. The conduit , has a first end defined on a portion of a top surface of the insertion head. The conduit also , extends through the body from the forward end to a back end thereof. …

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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 July 21, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 21, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 21, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 21, 2003
GrantedNo grant recorded
Term endedJuly 21, 2023
Patent numberCA 2744117 A1
Classification (IPC)A61F9/00 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedJuly 21, 2003Term endedJuly 21, 2023

Sources & verification

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