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Expired Canadian patentCanada

Clean dry facing needled composite

CA 2069682 C · Owner: Dabi, Shmuel · Inventors: Chinai, Kays; Dabi, Shmuel

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

Novel facing materials and methods for their manufacture are provided by this invention. The facing material includes at least a fibrous top layer for engaging body fluid and a generally opaque middle layer. A portion of the facing material is disposed preferably, by piercing, through the generally opaque middle layer to establish a fluid path through the generally opaque middle layer. In the preferred embodiment the facing, material includes a bottom layer having a capillary structure for drawing the body fluid from the fibrous top layer. In this preferred embodiment the fibrous, top layer extends through the generally opaque middle layer to provide fluid communication between the fibrous …

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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 May 27, 1992 and granted May 6, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 27, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 27, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 27, 1992
GrantedMay 6, 2003
Term endedMay 27, 2012
Patent numberCA 2069682 C
Classification (IPC)A61F13/15 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedMay 27, 1992Patent grantedMay 6, 2003Term endedMay 27, 2012

Sources & verification

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