Notched pontic and system for fabricating dental appliance for use therewith
CA 2580481 C · Owner: Schwartz, Dann A. · Inventors: Schwartz, Dann A.; Sheridan, John J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pontic (10) having a prefabricated notch channel or slot (11) to physically , engage and ensure a secure mechanical lock with the dental appliance (30). The invention also pertains to a method of fabricating a dental appliance (30) and a kit for facilitating the same. The invention has particular application to thermoformed, removable appliances.
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 September 14, 2005 and granted April 8, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 14, 2025.
- 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.
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.