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Expired Canadian patentCanada

Adhesive for secure topical attachment to the skin and comfortable removal

CA 2275895 C · Owner: Corzani, Italo · Inventors: Coles, Peter; Corzani, Italo; Cinelli, Fabio

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The present invention relates to a combination of a substrate with topical adhesives for attachment to the skin. In particular the present invention relates to a combination of a substrate with a topical adhesive which can be employed for attachment to the skin in the area were absorption of bodily liquids is desired. The combination provides secure attachment and is pleasing to the skin upon application yet causes no discomfort upon removal. This is achieved by selecting the chemical composition and theological characteristics of the topical adhesives and the physical characteristics of the substrate on which the topical adhesive is applied.

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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 December 22, 1997 and granted October 7, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 22, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 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.
FiledDecember 22, 1997
GrantedOctober 7, 2003
Term endedDecember 22, 2017
Patent numberCA 2275895 C
Classification (IPC)A61F13/15 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedDec 22, 1997Patent grantedOct 7, 2003Term endedDec 22, 2017

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.