Resilient artificial denture tooth
CA 1067321 A · Owner: Indiana University Foundation · Inventors: Heimansohn, Henry C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
of Disclosure, An artificial tooth for use in a denture comprising a base portion, an occlusal portion and an intermediate, portion sandwiched between and secured to the base portion and occlusal portion, the intermediate portion being resilient to permit the occlusal portion yieldably to move relative to the base portion. The intermediate portion is disposed generally at equal vertical distances from the occlusal surface of the occlusal portion and the ridge lap surface of the base portion. Two connecting members spaced, apart in the mesial-distal direction are provided for, limiting the movement of the occlusal portion relative to the base portion. Such members are rigidly connected to …
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
- Granted December 4, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 4, 1996.
- 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.