High speed mechanical straining process to provide extensibility to laminates for use in disposable absorbent articles
CA 2202054 C · Owner: Plumley, Julian Ashton · Inventors: Plumley, Julian Ashton; Geilich, Ralf
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 high speed mechanical straining process to provide extensibility (56) to laminates (1) for disposable absorbent articles such as sanitary napkins, panty liners and incontinence pads having side , wrapping elements (52) for folding around the side edges of the wearer's undergarment. The components are designed to automatically wrap the side edges of the wearer's undergarment when the indergarments are pulled up by having zones (56) of extensibility. Importantly the zones (56) are created by a high , speed straining process of the laminate which comprises two layers (2 3) at , least one of which has apertures. The layers at least are joined in the …
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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 13, 1995 and granted July 24, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 13, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 13, 2017.
- 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.