Apparatus and method for deodorizing and/or freshening air
CA 2531100 A1 · Owner: The Procter & Gamble Company · Inventors: Bartsch, Eric Richard; Hardy, Charles Michael; Painter, Jeffrey Donald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus and methods for deodorizing and/or freshening the air are disclosed. In one non-limiting embodiment the apparatus includes one or more, passive members and an air moving member. The passive member can be detachable from the air moving member and used separately as a passive filter member if , it, contains a deodorizing substance or as a passive emitting member, if it contains a, substance to be emitted into the air. Numerous combinations of passive filter members and passive emitting members can be used with the air moving member or, as stand-alone members in the described methods. In other non-limiting embodiments, devices can be provided that both deodorize and emit substances …
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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 February 1, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 1, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 1, 2024.
- 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.