Composite prelaminated tapes for diaper closures
CA 1292643 C · Owner: Minnesota Mining And Manufacturing Company · Inventors: Pape, Peter H.K.; Tuschy, Jorg O.P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Composite prelaminated tape for forming closures for disposable diapers comprising a pressure-sensitive adhesive fastening tape partially overlying a release tape and a unifying strip bridging an edge of the release tape and the adjacent portion of the fastening tape. In use, the fastening tape and the release tape are bonded permanently to opposite sides of one edge of the diaper the end of, the fastening tape overlying the release tape being thereafter lifted free from the release tape and adhered to the opposite edge of the diaper from which it can be respectively reused and re-adhered to the edge of the diaper.
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 December 3, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 3, 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.