Split arch conversion pressing
CA 2024709 A1 · Owner: Pritchard, James S. · Inventors: Pritchard, James S.; Pritchard, James S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract 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 …
Read the whole patent
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.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.