Odor controlling compositions and articles
CA 2071906 C · Owner: The Procter & Gamble Company · Inventors: Furio, Diane Lynn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Zeolites having "intermediate" SiO2/AlO2 ratios are used to control odors. An "intermediate" ratio is when the, SiO2/AlO2 ratio is less than about 10. The intermediate zeolites find use in catamenials, diapers, pantiliners, bandages and, the like. where control of odors associated with body fluids is desired. Combinations of intermediate zeolites with other odor controlling materials is also disclosed.
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 January 31, 1991 and granted December 28, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 31, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 31, 2013.
- 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.