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Expired Canadian patentCanada

System and method for improved treatment of sleeping disorders using therapeutic positive airway pressure

CA 2529690 C · Owner: New York University · Inventors: Rapoport, David M.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

Described is a method and system providing therapeutic positive airway pressure to a particular area of patient's airways. The system may include a flow generator and a processing arrangement. The flow generator supplies an airflow to an airway of the patient. The processing arrangement is connected to the flow generator to control a supply pressure at which the airflow is generated by the flow generator. The processing arrangement continuously adjusts the supply pressure to maintain a pressure in a predetermined portion of the patent's airway substantially constant. The predetermined portion of the patient's airway includes a collapsible portion of an upper airway of the patient. …

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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 June 4, 2004 and granted November 24, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 4, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 4, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 4, 2004
GrantedNovember 24, 2015
Term endedJune 4, 2024
Patent numberCA 2529690 C
Classification (IPC)A61M16/00 +1 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJune 4, 2004Patent grantedNov 24, 2015Term endedJune 4, 2024

Sources & verification

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