Absorbent article
CA 2224557 C · Owner: Procter & Gamble Far East Inc. · Inventors: Dokan, Aki; Sawaki, Noriko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An absorbent article comprising a liquid pervious topsheet (4) a liquid , impervious backsheet, and an absorbent core (8) surrounded by the topsheet (4) and the backsheet is improved in such a manner as to be deformed in the width direction without being distorted inappropriately when undergoing a widthwise compressive force. The absorbent core (8) includes a central core piece (12) and a pair of side core pieces (14) disposed on both sides of the central core piece; or includes a central core portion a pair of connecting portions , extending downwardly from the opposite side edges of the central core portion and a pair of side core portions extending widthwise outwardly from the …
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, 1996 and granted December 18, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 3, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 3, 2018.
- 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.