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Canadian application, no grantCanada

Split arch conversion pressing

CA 2024709 A1 · Owner: Pritchard, James S. · Inventors: Pritchard, James S.; Pritchard, James S.

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

This means reinforces convex and concave curved panels of similar thickness made from fillers which have a binding value which produces a shear strength for use as a vehicle to transfer stress between adjacent arched parts of the means which comprises rows of uniform height square waved arched pressed to one side of a single sheet of tensile material in a regular plan array and to a workable configuration of proximity and overlap and where for curves each arch is split along its length and its opposite ends detached at the sheet and where each split portion is modified by a barbed means and a responding curve and in the remaining port bf the sheet is placed an accordion means crimping in an …

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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 September 6, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 6, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 6, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 6, 1990
GrantedNo grant recorded
Term endedSeptember 6, 2010
Patent numberCA 2024709 A1
Classification (IPC)E04C2/10

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedSep 6, 1990Term endedSep 6, 2010

Sources & verification

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