Absorbent article having stain masking characteristics
CA 2499062 C · Owner: Kelly, William G. F. · Inventors: Kelly, William G. F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sanitary napkin including a body-facing cover layer and an absorbent system adjacent the cover layer for receiving liquid therefrom the napkin having a masking value of less than about 115,000 an average fluid penetration time of less than about 45 seconds and an average rewet of less than about .05 grams according to the test procedure described herein.
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 March 1, 2005 and granted October 30, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 1, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.