Dental model and process of making same
CA 2097591 C · Owner: Garland, James K. · Inventors: Garland, James K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dental model (10) and articulation system are disclosed The dental model , (10) comprises cast mold material (14) formed around an elongate pin or rod (12). A longitudinal tapered pin or rod (12) is embedded in the model during pouring of the casting material (14). The pin or rod (12) extends longitudinally through the base of the model beneath the teeth impressions of the model. The pin or rod (12) can be removed from the model (10) and the model (10) can be cut into several sections or dies. These sections or dies can then be reassembled back on the pin or rod (12) in the precise, true relationship that exists in the model (10) prior to the model being cut into sections. The …
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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 29, 1991 and granted May 1, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 29, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 29, 2013.
- 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.