Method of making an orthodontic appliance
CA 1311378 C · Owner: Adell, Michael · Inventors: Adell, Loren S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of making a dental appliance made of an elasticized acrylic containing embedded nylon fibers including the steps of heating the thermoplastic material, forming it onto a dental cast and cooling, it to a rigid state is disclosed. The fibers may be arranged in various patterns within the elasticized acrylic and it is the fibers which act on the arch through the elasticized acrylic. The appliance may be used as a tooth positioner, a retainer, a splint or a base plate.
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 15, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 15, 2009.
- 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.