A device for dispensing artificial teeth
CA 2274883 A1 · Owner: Macculloch, William Thomson · Inventors: Macculloch, William Thomson
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for dispensing articifial teeth comprises a tooth support ribbon (2) which is made from a flexible material and is shaped to form an arch which substantially corresponds in shape to an upper or lower natural dental arch. A set (10) of artifical teeth (11, 12) is removably mounted on the support ribbon (2) by means of a slot (13) in each tooth (11 12) which engages with a , key (16) in the ribbon (2). The teeth are arranged on the ribbon (2) in an order which simulates natural dentition. The radius of the arch may be adjusted by means of an extensible cross-member (3) connected at each end to the ribbon (2) and extending across the arch.
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 11, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 11, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 11, 2019.
- 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.