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Expired Canadian patentCanada

Tapered endosseous dental implants with external multiple lead threads

CA 2570775 C · Owner: Implant Direct Int'L · Inventors: Niznick, Gerald A.

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

Endosseous dental implants tapered over at least part of their length include, two separate portions, a shorter proximal region with half the distance and half the, depth between adjacent peaks of multiple lead threads as the longer distal region, which has half the number of multiple lead threads as in the proximal region.

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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 February 6, 2006 and granted November 26, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 6, 2026.
  • 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.
FiledFebruary 6, 2006
GrantedNovember 26, 2013
Term endedFebruary 6, 2026
Patent numberCA 2570775 C
Classification (IPC)A61C8/00

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedFeb 6, 2006Patent grantedNov 26, 2013Term endedFeb 6, 2026

Sources & verification

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