Disposable absorbent pants
CA 2104504 C · Owner: Uni-Charm Corporation · Inventors: Fujioka, Yoshihisa; Mukai, Hirotomo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disposable absorbent pants improved so that liquid excretion can be effectively prevented from leaking out along laterally opposite side edges of crotch zone. Front and rear bodies are placed one upon another and welded together along laterally opposite side edges as well as along the middle of crotch zone to form a basic structure of pants and there is provided an auxiliary liquid-absorbent panel over the top surface of the crotch zone.
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 August 20, 1993 and granted June 23, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 20, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 20, 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.