Antistatic medication delivery apparatus
CA 2736640 C · Owner: Trudell Medical International · Inventors: Schmidt, James N.; Bruce, Sarah
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An aerosol medication delivery apparatus (50) include a holding chamber (4 20) having an input end (6) and an output end (14) and defining an interior space (19). In one embodiment the holding chamber is antistatic and is made of a plastic material having a surface resistivity of between about 10E10 and about 10E12 ohm/sq. In another embodiment a component, such as a backpiece (22) or mouthpiece (102 108, 110), separate from the holding chamber is antistatic and is made of a material having a surface resistivity of between about 10E10 and about 10E12 ohm/sq. The component is connected to the holding chamber which may or may not be antistatic. In one embodiment the component is made of an …
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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 April 14, 2004 and granted October 9, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 14, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 14, 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.
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.