Process for manufacturing disposable absorbent cores, and an apparatus for performing the process
CA 2375964 A1 · Owner: Schmitz, Christoph Johann · Inventors: Schmitz, Christoph Johann; Franzmann, Dirk
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides a process and apparatus (38) for the manufacture of disposable absorbent cores from a continuous web (40) wherein a plurality of , first and second core elements (40a 40b) are cut from the same continuous web (40). The object of the invention is achieved by rotating each of first and second core elements (40a, 40b) about axes perpendicular to the plane of the core element and subsequently combining a first core element (40a) and a second core element (40b) in proximal relationship to form the absorbent core. Preferably each of the first and second core elements (40a 40b) are rotated , through 90~ in mutually counter-rotating directions.
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 June 23, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 23, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 23, 2022.
- 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.