Method for manufacturing one-piece tape tabs for use with disposable absorbent articles
CA 2192178 C · Owner: Goulait, David Joseph Kenneth · Inventors: Cabell, David William; Ronn, Karl Patrick; Goulait, David Joseph Kenneth
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for the manufacture of one-piece tape tabs (40) to be used with disposable absorbent articles (20). The first step is to provide a backing substrate upon which the pressuresensitive adhesive of the tape tab (40) can be applied. Once the backing is provided, the pressure-sensitive adhesive is applied to regions of one side to the backing substrate. The backing substrate is then slit in a direction parallel to the machine direction forming tape tab stock that is preferably fed directly to the taper unit of the absorbent article manufacturing line. The taper unit cuts the tape tab stock comprising the pressuresensitive adhesive into individual tape tabs (40) each having a, fixed end …
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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 June 9, 1995 and granted October 24, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 9, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 9, 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.