Allergen neutralization compositions containing aluminum ions
CA 2432728 A1 · Owner: The Procter & Gamble Company · Inventors: Chatterjee, Ranjit; Yoshikawa, Akikazu; Kobayashi, Ryoko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Allergen neutralization compositions for use on inanimate objects having an effective amount of an allergy neutralizing aluminum ion and a solvent. The , allergen neutralization compositions are sprayable and at least about 60 %, by weight of the aluminum ion is provided as a salt of an anion selected from the group consisting of sulfate, chloride nitrite, potassium sulfate and , mixtures thereof. The composition preferably contains essentially no aluminum chlorohydarate, and may contain additional allergen denaturing compounds such as polyphenol compounds, hydrogen peroxide salicylic acid, citric acid, lactic acid glycolic acid, additional metal ions and mixtures of these. Other …
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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 8, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 8, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 8, 2023.
- 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
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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.