Stretch-pillowed, bulked laminate
CA 2097630 A1 · Owner: Uitenbroek, Duane Girard · Inventors: Uitenbroek, Duane Girard; Mccormack, Ann Louise
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed herein is a bulk-stretched pillowed laminate of two or more layers in which at least one of the layers is stretched before other layers are attached to it. In one execution, a thermoplastic film is stretched until it permanently deforms. Then, while still in a stretched state, a nonwoven web is laminated to the film and the resultant composite is allowed to relax slightly causing the nonwoven layer to gather and pucker which in turn, gives the composite a thicker and bulkier feel and appearance. The material of the present invention while, having a wide variety of uses, is particularly well-suited for use as an outercover for personal care absorbent articles, including diapers, …
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 3, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 3, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 3, 2015.
- 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.