Dental impression tray and process for the use thereof
CA 1214954 A · Owner: Von Nostitz, Frauke H.F. · Inventors: Von Nostitz, Frauke H.F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Dental Impression Tray and Process for the Use Thereof A dental impression tray has approximately the form of the upper or lower biting surfaces and is made of thermoplastics material. The dental impression tray may be used to produce a functional impression of the upper or lower biting surfaces, including an occlusal impression and is further suitable, in combination with a suitable lining material, as a dental guard for sportsmen.
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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
- Granted December 9, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 9, 2003.
- 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.