Dental product combining a reamer tool and anchor post
CA 2003315 A1 · Owner: Weissman, Bernard · Inventors: Weissman, Bernard; Weissman, Bernard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a combination product which combines the utility of a tool and a prosthesis support post for use in dentistry, and more particularly to a product which first can be used as a dental tool which provides for the drilling of a bore hole and for the forming of lateral undercuts along the interior longitudinal surface of the bore hole into a tooth canal, and which can be rotated by a dental handpiece associated with a dental drill and at least a, portion thereof can then be maintained within its own drillhole as an anchor, or support, post for a dental prosthesis.
Read the whole patent
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 17, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 17, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 17, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.