Plastics tapes and a sanitary article
CA 2228455 C · Owner: The Procter & Gamble Company · Inventors: Palumbo, Gianfranco; Corzani, Italo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are flexible plastic tapes each having at least one rounded edge, a method for forming the rounded edge by the application of heat and, an absorbent article provided with such tapes. The edges are rounded to reduce their sharpness in order to reduce the risk of irritation or injury to a, wearer of the absorbent article and/or to any person coming into contact with the tapes. The tapes have a thickness not greater than that at which the edge would be sharp if it were not rounded. The tapes are relatively stiff and formed from a plastic material such as polypropylene or polypropylene copolymer.
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 August 13, 1996 and granted July 2, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 13, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 13, 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.