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Expired Canadian patentCanada

Process for the manufacture of a carbon fibre reinforced article from a master model

CA 2101545 C · Owner: Mozer, Rudolf W. · Inventors: Mozer, Rudolf W.

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

A process for producing a carbon fiber facsimile from a master model, wherein layers of epoxy impregnated carbon fiber weave are applied to the surface of master model a, pressure pad having a first surface with topography substantially complementing the surface topography of master model and a second side adapted for substantially uniform transmittal of pressure is placed thereon a breather cloth, is placed over the layers of epoxy impregnated carbon fiber weave, a rubber membrane is placed over the breather cloth and the layers of epoxy impregnated carbon fiber weave are cured under pressure using a catalyst for exothermic heat producing a carbon fiber facsimile having a uniform wall …

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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 19, 1991 and granted January 28, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 19, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 19, 2013.
  • 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 19, 1991
GrantedJanuary 28, 1997
Term endedDecember 19, 2011
Patent numberCA 2101545 C
Classification (IPC)B29C70/42 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedDec 19, 1991Patent grantedJan 28, 1997Term endedDec 19, 2011

Sources & verification

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