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Expired Canadian patentCanada

Liner providing barrier for protective garment and protective garment comprising same

CA 2490739 C · Owner: Grilliot, Mary I. · Inventors: Grilliot, William L.; Grilliot, Mary I.; Lewis, Patricia K.

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

For and in a protective garment having an outer shell a liner having a barrier side and an opposite side and having on the barrier side, a moisture barrier or a barrier against chemical or biological agents is folded along two folds which are parallel when laid flat and straightened so as to form a fin projecting from the opposite side. A seal providing a similar barrier is provided between the folds. A plural-part fastener such as a snap fastener or a hook-and-loop fastener is used to fasten the liner having the barrier to and within the outer shell. One part of the plural-part fastener is mounted to the liner and another part of the plural- part fastener is mounted to the outer shell. …

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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 21, 2004 and granted May 7, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 21, 2024.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • 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 21, 2004
GrantedMay 7, 2013
Term endedDecember 21, 2024
Patent numberCA 2490739 C
Classification (IPC)A62B17/00

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedDec 21, 2004Patent grantedMay 7, 2013Term endedDec 21, 2024

Sources & verification

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