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Expired Canadian patentCanada

Pressure-sensitive medical sealant

CA 1340981 C · Owner: Minnesota Mining And Manufacturing Company · Inventors: Asmus, Robert Allen; Duan, Daniel Charles

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

A pressure-sensitive medical sealant composition comprising a) a crosslinked, swellable polymeric matrix made from an N-vinyl lactam monomer and a multi-ethylenically unsaturated compound wherein the, ethylenic groups are vinyl groups allyl groups or, methallyl groups, which groups are bonded to nitrogen or oxygen atoms; b) a plasticizer; and c) an antimicrobial. The medical sealant is highly moisture vapor transmissive and is capable of incorporating large concentrations of iodine. The composition can be used in a variety of medical applications including as a teat plug a wound or, burn dressing, or as a sealant to seal junctions between medical instruments penetrating the skin and the …

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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

  • Granted May 2, 2000. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 2, 2017.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 8, 1988
GrantedMay 2, 2000
Term endedMay 2, 2017
Patent numberCA 1340981 C
Classification (IPC)A61L24/06 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007201020132016Application filedNov 8, 1988Patent grantedMay 2, 2000Term endedMay 2, 2017

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