Breath activated medication spray
CA 1255987 A · Owner: Robert Landis · Inventors: Landis, Robert; Kassay, Joseph E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device is provided for providing a metered dose of medication for inhalation by the patient. The device includes a case having a conduit passage connected to a mouthpiece and having an angled door activated to open the conduit passage when the patient inhales through the mouthpiece. The angled door is connected to an electrical circuit which is closed when the patient inhales through the conduit. The closed electrical circuit releases a spring-tensioned medicinal cartridge to force the cartridge release pin into a conduit aperture to release a dose of medicine into the conduit for inhalation by the patient.
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 June 20, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 20, 2006.
- 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.