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Expired Canadian patentCanada

Ceiling formwork system

CA 2612193 C · Owner: Peri Gmbh · Inventors: Schwoerer, Arthur

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 ceiling formwork system comprising several grid elements, each of which is composed of a plurality of parallel longitudinal beams and at least one transversal beam that can be mounted or placed on vertical supports and extends perpendicular to the longitudinal beams. The longitudinal and transversal beams of the grid elements are rigidly interconnected. Standard grid elements are provided with two transversal beams in the opposite terminal areas of the longitudinal beams while transversal compensating grid elements are fitted with two transversal beams which are offset towards the inside in relation to the standard grid elements.

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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 June 30, 2006 and granted September 17, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 30, 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.
FiledJune 30, 2006
GrantedSeptember 17, 2013
Term endedJune 30, 2026
Patent numberCA 2612193 C
Classification (IPC)E04G11/54 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJune 30, 2006Patent grantedSep 17, 2013Term endedJune 30, 2026

Sources & verification

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