Improvements in components for permanent removable and adjustable dentures and bridges
CA 2511785 C · Owner: Weissman, Bernard · Inventors: Weissman, Bernard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dental prosthesis foundation (F) capable of being finished or adjusted or repaired and which may be adjusted to variable jaw ridge (R) sizes and formed , with self-curing hardened resins. The foundation (F) supports prosthetic teeth and is permanently but removably secured to the jaw by implants (18 94) , embedded in hard dental tissue, such as tooth stubs or bones. The dentures can be readily repaired or adjusted for changes in the jaw of the patient by , chairside techniques available to dentists. The foundation (F) can also be adjusted to changes in size and shape of ridges (R) in the jawbones for more comfortable use of the dentures secured on such prostheses.
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 December 23, 2003 and granted June 4, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 23, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 23, 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.
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.