Method of manufacturing a catamenial/tampon device
CA 2450405 A1 · Owner: Edgett, Keith · Inventors: Knuth, Rosemary F.; Williams, Karla E.; Edgett, Keith
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is a method for making an odor adsorbent tampon or related catamenial device. The method includes the steps of forming a plurality of fibers (26), preferably by extrusion and impregnating or urging , into or inserting into the interstices of the fibers (26) with one or more odor adsorbent materials while th eprocess of forming the fibers (26) is being performed. Thereafter, the plurality of fibers (26) so formed are suitably and conventionally brought together to produce the finished device. Preferably the one or more odor adsorbent materials is in liquid form and/or is naturally sourced.
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 6, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 6, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 6, 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.