A panty liner
CA 2441935 A1 · Owner: Sca Hygiene Products Ab · Inventors: Persson, Charlotte; Wiezell, Britt-Marie
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 panty liner which includes active additives, such as lactobacilli, wherein the article comprises a liquidpermeable top sheet which lies proximal to the wearer in use,a liquidimpermeable backing sheet which lies distal from the wearer in use possibly , an intermediate absorbent layer and possibly fastener means. The panty liner is manufactured in a manner such that the active additives preferably , lactobacillus, are given a sufficiently effective and dryenvironment to ensure a healthy survival rate of said additives until the product is used.
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 22, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 22, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 22, 2024.
- 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.