Diketone deodorant composition and method of deodorization
CA 2029641 A1 · Owner: Chatterjee, Ranjit · Inventors: Bush, Rodney D.; Chatterjee, Ranjit
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides deodorant compositions for controlling malodor from perspiration comprising a safe an effective amount of a 1,3-diketone compound having the general formula: wherein each W is independently selected from the group consisting of O, S and (CH2)n, wherein n = 1-3; and each X is independently selected from the group consisting of hydrogen halogen, sub-, stituted or unsubstituted alkyl having from about 1 to about 5 carbon atoms, or two X moieties are covalently bonded to form a substituted or unsubstituted alkyl, heteroalkyl aryl or, heteroaryl ring having from about 3 to about 12 atoms including from 0 to about 3 heteroatoms in the ring; and a topical carrier; …
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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 November 9, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 9, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 9, 2012.
- 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.