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Expired Canadian patentCanada

Method for producing hollow body elements, hollow body element, component, follow-on composite tool for producing hollow body elements

CA 2864261 C · Owner: Profil Verbindungstechnik Gmbh & Co. Kg · Inventors: Vieth, Michael; Humpert, Richard; Babej, Jiri

CIPO record

Overview

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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 method for producing hollow body elements (200) for example, nut elements which are applied to components which are normally made of steel (280) in particular, for producing hollow body elements having an essentially quadratic or rectangular external profile (202). Said method consists of cutting individual elements of a profile in the form of a profile rod (1) or a winding after holes (204) have previously been stamped in the profile a threaded cylinder (206) is subsequently optionally, formed using a follow-on composite tool (10) which consists of several working stations. The invention is characterised in that a penetrating process and a punching process are …

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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 24, 2006 and granted October 4, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 24, 2026.
  • 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.
FiledMay 24, 2006
GrantedOctober 4, 2016
Term endedMay 24, 2026
Patent numberCA 2864261 C
Classification (IPC)B21K1/66 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedMay 24, 2006Patent grantedOct 4, 2016Term endedMay 24, 2026

Sources & verification

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