A hygienic tampon and an absorbent body used in the formation of a tampon
CA 2544091 C · Owner: Costa, Rogerio · Inventors: Costa, Rogerio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tampon comprised of a matrix is disclosed wherein the matrix is provided , with an inner surface and a structural layer adjacent to the inner surface the structural layer being constituted of at least one thermosplastic element. An absorbent body, particurlarly used in the formation of a tampon 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 October 29, 2004 and granted May 22, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 29, 2024.
- 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.