Disposable undergarment
CA 2303596 C · Owner: Uni-Charm Corporation · Inventors: Suzuki, Naomi; Mishima, Yoshitaka
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A disposable diaper includes barrier side flaps 5 extending along an opposite side edges 1a of a diaper body. The barrier side flaps 5 each includes a first side section 5a extending above an upper side of the body and a second side section 5b extending below a lower side of the body. The second side section 5b includes being folded back with its inner surface put flat together so as to define a free subsection extending inward of the body and a fixed subsection extending outward of the body. A surface of the fixed subsection opposed to the lower side of the body is joined to the lower side and opposite end sections 5c of the barrier flaps 5 are collapsed inward of the body and joined to …
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 30, 2000 and granted December 30, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 30, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 30, 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.