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Expired Canadian patentCanada

Collagen blend

CA 2210025 C · Owner: Timmermans, Fransiscus Aloysius · Inventors: Schmidl, Bettina; De Mari, Michael; Bailey, A. J.

CIPO record

Overview

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

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Abstract From the Canadian patent

Blends of different types of collagen having different types of cross-linkings, so that the blend comprises cross-linkings of the pyridioline-type(=Pyrid) dihydroxylysinonorleucine-type (=DHLNL) and histidinohydroxylysinonorleusine-type(=HHL) in amounts such that:, (Pyrid+DHLNL)/HHL=0.04-6, display excellent properties for use in casings for e.g. meatproducts.

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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 July 10, 1997 and granted September 11, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 10, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 10, 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.
FiledJuly 10, 1997
GrantedSeptember 11, 2001
Term endedJuly 10, 2017
Patent numberCA 2210025 C
Classification (IPC)C07K14/78 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedJuly 10, 1997Patent grantedSep 11, 2001Term endedJuly 10, 2017

Sources & verification

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