Patent Yard Sign in
Expired Canadian patentCanada

Oral orthopedic/orthodontic appliance for treating neuromuscular imbalance

CA 1231857 A · Owner: Sleep Renewal, Inc. · Inventors: Pope, Bryan M.; Hawkins, Richard H.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

An orthopedic/orthodontic appliance for treating neuromuscular imbalance which interrupts balanced myofacial growth and development which includes mandible fixation means for maintaining the mandible of the user in an essentially neuromuscularly balanced position when the mouth is closed. The appliance also includes a pressure equalization conduit extending from a position exterior the lip seal of the user to a position in the posterior of the oral cavity which is in fluid communication with the pharyngeal cavity so that the pressure in the user's pharyngeal cavity is equalized to the ambient pressure outside the head while the user's mandible is maintained in the essentially …

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 26, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 26, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 8, 1985
GrantedJanuary 26, 1988
Term endedJanuary 26, 2005
Patent numberCA 1231857 A
Classification (IPC)A61N1/36 +1 more

Timeline

Timeline From CIPO dates

1986198819901992199419961998200020022004Application filedOct 8, 1985Patent grantedJan 26, 1988Term endedJan 26, 2005

Sources & verification

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