Disposable absorbent pants type undergarment
CA 2180631 C · Owner: Soga, Hiroyuki · Inventors: Otsubo, Toshifumi; Soga, Hiroyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a diaper as one embodiment of a disposable absorbent undergarment according to the invention the diaper is provided around a front region thereof with a plurality of elastic elements. The number of the elastic elements arranged in an area defined by respective vertical widths of 10mm above and below a front edge of an absorbent core disposed between a topsheet and a backsheet is greater than that of the elastic elements in the remaining area of the front region. An elongation stress of the elastic elements in the area mentioned firstly is lower than that of the elastic elements in the area mentioned lastly.
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 July 5, 1996 and granted August 1, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 5, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 5, 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.