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Expired Canadian patentCanada

Conformable bandage and coating material

CA 2000548 C · Owner: Salamone, Joseph C. · Inventors: Olson, Alfred P.; Salamone, Ann B.; Salamone, Joseph C.

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

R0293/7003, SS/sas, 09/16/89, 5696s, ABSTRACT Combinations of alkyl siloxy siloxane-containing polymers admixed with liquid polydimethylsiloxanes are excellent non-stinging, non-irritating liquid coating material for forming films which act as conformable bandages adhering to and protecting nails, skin and mucous membrane wounds from abrasion, contamination, and desiccation while, stopping pain from exposed nerve ends and allowing body fluid evaporation.

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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 October 12, 1989 and granted December 5, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 12, 2009.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 12, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 12, 1989
GrantedDecember 5, 2000
Term endedOctober 12, 2009
Patent numberCA 2000548 C
Classification (IPC)A61L26/00 +2 more

Sources & verification

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