Respiratory mask seal and mask using same
CA 2586863 C · Owner: Busch, Lance · Inventors: Eaton, Jason P.; Scarberry, Eugene N.; Ho, Peter Chi Fai
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A seal (14, 100, 120, 130, 170, 190, 210 240) and a mask (10) using a seal , that includes a first end portion (28) adapted to be coupled to a seal support, a second end portion (30, 104 126, 134, 194, 218) adapted for , sealing engagement with a face of a user and a sidewall (44, 108, 129, 129', 196) extending between the first end portion and the second end portion. The first end portion, second end portion, sidewall or any combination thereof is , formed from an elastomeric material having an elongation of at least 1000 %. The seal preferably formed from a unitary piece of elastomeric material.
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
- Filed November 4, 2005 and granted July 23, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 4, 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.
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.