Multi-functional protective fiber and methods for use
CA 2477248 A1 · Owner: Hartley, Scott M. · Inventors: Sallavanti, Robert A.; Axtell, Holly C.; Hartley, Scott M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A reactive and adsorptive (i.e. protective) fiber a mufti-element protective , filter and methods for constructing and using same which possess at least chemically reactive and biocidal properties. Nanoparticles from different classes such as metal oxides, metal hydroxides metal hydrates and POMs are , incorporated into elements which can be utilized in a wide variety of protective materials. The nanoparticles may be treated to reduce water solubility or combined with halogens, alkali metals or secondary metal oxides to specifically engineer the nanoparticle to address a particular chemical or biocidal threat. When arranged upstream of an activated carbon filter the , nanoparticles …
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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 21, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 21, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 21, 2025.
- 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.