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Expired Canadian patentCanada

Intraoral discluder and method for relieving migraine and tension headaches and temporomandibular disorders

CA 2497655 C · Owner: Boyd Research, Inc. · Inventors: Boyd, James P.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An intraoral discluder for preventing chronic tension headaches common migraine headaches, and temporomandibular disorders that are caused or perpetuated by chronic activity of the temporalis muscle. The discluder includes a trough contoured to encompass at least one maxillary or mandibular incisor from which extends a protruding platform for engagement by the opposing incisors. The trough can be retained on the teeth by any adaptable material than can flow around the teeth and then maintain its shape. Once in place in the wearer's mouth one or two opposing incisors will come into contact with the platform prior to the upper and lower posterior and/or canine teeth coming into contact …

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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 February 21, 2005 and granted October 2, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 21, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 21, 2005
GrantedOctober 2, 2012
Term endedFebruary 21, 2025
Patent numberCA 2497655 C
Classification (IPC)A61C7/36 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedFeb 21, 2005Patent grantedOct 2, 2012Term endedFeb 21, 2025

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.