Fabric treating composition containing beta-cyclodextrin
CA 2196294 C · Owner: Pilosof, David · Inventors: Cappel, Jerome Paul; Zwerdling, Susan Schmaedecke; Trinh, Toan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a stable aqueous odor-absorbing composition , for use on inanimate surfaces. The composition comprises from about 0.1 % to about 5 % of solubilized, uncomplexed cyclodextrin preferably, an effective , amount of a solubilized water-soluble antimicrobial preservative having a water-solubility of greater than about 0.3 % preferably, from about 0 % to , about 10 % by weight of the composition, of solubilized water-soluble , metallic salt, aqueous carrier and wherein said composition is essentially free of any material that would soil or stain fabric and wherein said composition is essentially free of perfume and has a pH greater than about 3.
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
- Filed July 26, 1995 and granted May 15, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 26, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 26, 2017.
- 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.