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Expired Canadian patentCanada

Focusing nozzle

CA 2577151 C · Owner: Ceratizit Austria Gesellschaft M.B.H. · Inventors: Koesters, Rolf

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

The invention relates to a focusing nozzle for abrasive water jet cutting consisting of a nozzle body of carbide metal comprising a bore, in which at least the bore wall has a single- or a multi-layer coating of hard material. According to the invention the hard material coating, has a coat with titanium nitride content at least at the free surface.

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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 August 9, 2005 and granted January 22, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 9, 2025.
  • 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.
FiledAugust 9, 2005
GrantedJanuary 22, 2013
Term endedAugust 9, 2025
Patent numberCA 2577151 C
Classification (IPC)B24C5/04 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedAug 9, 2005Patent grantedJan 22, 2013Term endedAug 9, 2025

Sources & verification

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