Disposable absorbent garment and method of constructing the same
CA 2268631 C · Owner: Johnson, Larry Kenneth · Inventors: Johnson, Larry Kenneth; Lange, Stephen Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A disposable, absorbent garment, such as a diaper having an absorbent core , (14) and stretchable substantially liquid impermeable, web (12). The core (14) is attached to the web (12) by a strip of adhesive (32) extending in a longitudinal direction along the bottom surface of the core (14). The web (12) is folded around the exterior of the core (14) and includes notches formed in opposing sides of the crotch portion of the web (12). When folded about the core (14) the , notched areas form a longitudinally extending opening along the top surface of the core (14). A plurality of elastic bands are affixed along the crotch portion of the web (12) so as to extend substantially parallel 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 September 22, 1997 and granted April 8, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 22, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 22, 2019.
- 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.