Nasal anatomical device to increase the respiratory capacity
CA 2272450 A1 · Owner: Guerra Navas, Antonio · Inventors: Guerra Navas, Antonio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Nasal anatomical device to increase the respiratory capacity which is constituted by two identical open loops of annular shape, and constructed of an elastically deformable material which is, aseptic and antiallergenic, and linked by a U-shaped bridge-piece which is also elastically deformable.
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 May 19, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 19, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 19, 2021.
- 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.