Diaper with elastic and hook and pile fasteners
CA 1280251 C · Owner: Cosens, Calvin B. · Inventors: Brownlee, James R.; Lasby, William E.; Cosens, Calvin B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A baby diaper has a forward portion a rearward, portion and attachment tabs mounted on opposite sides of both the forward and rearward portions. An expansion means in the form of elastic material is mounted on the forward portion between the oppositely located tabs on the forward portion and substantially centrally of the tabs to thereby allow for stomach movement of the infant and to create a connection between the tabs which has greater integrity. Additional elastic material is mounted in the central area between the forward and rearward portions which is pretensioned to allow for the diaper to assume a cup shape when it is unrestrained prior to positioning the diaper on an infant.
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
- Granted February 19, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 19, 2008.
- 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.