Disposable diaper having mechanical fastener
CA 2264331 C · Owner: Uni-Charm Corporation · Inventors: Minato, Hironao
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A disposable diaper according to the present invention includes mechanical tape fasteners and the tape fasteners 18 extend outwards from transversely opposite side edges 15 of a disposable diaper 1 and are provided on their front surfaces with hook members 22. Each of the hook members 22 have their front surfaces partially coated with adhesive 25 by means of which the hook members 22 are peelably bonded to release zones formed of material such as a plastic sheet in the proximity of the side edges 15 of the diaper.
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 March 2, 1999 and granted July 2, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 2, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 2, 2021.
- 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.