Method of making curved, shaped absorbent article
CA 2195690 C · Owner: Keeler, Sheri Dean · Inventors: Sorensen, Eugene Robert; Hines, Letha Margie; Bamber, Jeffrey Vincent
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of making a curved absorbent article such, as a sanitary napkin, is provided. The absorbent article includes a first component that is elastically extensible and which has a first portion and a second portion and also includes a second component. Both of the components have a pair of opposed faces. The first and second components are placed in facing relationship. The first component is stretched so that the first portion of the first component is stretched more than the second portion thereof. A portion of the first component is secured to a portion of the second component to form a pre-formed absorbent article and, the first component is allowed to retract to form a curved …
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 23, 1992 and granted January 30, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 23, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 23, 2014.
- 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.