Uncomplexed cyclodextrin solutions for odor control or inanimate surfaces
CA 2197441 C · Owner: Mccarty, Mark Lee · Inventors: Geis, Philip Anthony; Cappel, Jerome Paul; Pilosof, David
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 % by weight of the composition of solubilized, water-soluble, uncomplexed cyclodextrin an effective amount of a solubilized, water-soluble antimicrobial preservative having a water-solubility of greater than about 0.3 %, optional perfume, and an aqueous carrier. The composition is essentially free of any material that would soil or stain fabric and has a pH of greater than about 3. The composition can be incorporated into a spray dispenser to create an article of commerce that can facilitate treatment of articles and/or …
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 20, 1995 and granted September 18, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 20, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 20, 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.