Retention device for dentures and the like
CA 1285406 C · Owner: Essential Dental Systems, Inc. · Inventors: Musikant, Barry L.; Deutsch, Allan S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A releasable magnetic retention device having two opposed substantially like units each of which has a relatively small permanent magnet of opposed poles one pole of which is, utilized with a conductor of low coercivity material to form a larger magnetic flux field in the conductor so that when the two like units are placed in magnetic attracting relation the two conductors complete a strong enlarged magnetic flux path between them to releasably retain the units together.
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 July 2, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 2, 2008.
- 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.