Closed flap spring for orthodontic appliances
CA 1069352 A · Owner: Fisher, Robert L. · Inventors: Fisher, Robert L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Fisher-1, UNITED STATES PATENT APPLICATION OF: Robert Leon Fisher, FOR: IMPROVED CLOSED FLAP SPRING FOR ORTHODONTIC APPLIANCES, Abstract of the Disclosure . An improved closed flap spring for orthodontic appliances used in orthodontic treatment of a patient including a, wire fashioned in the shape of a T having a vertical portion, and a horizontal portion the vertical portion having a pair of, spaced tag portions at its lower end for processing or attaching to the orthodontic appliance, a pair of spaced parallel arm portions as extensions of the tag portions forming the upper end of the vertical portion of the T, a pair of rounded loop portions one of the loop portions extending generally …
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 January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
- 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.