Variable top curb mold
CA 2043773 A1 · Owner: Alfa Construction Inc. · Inventors: Cerquozzi, Luigi; Cerquozzi, Andrea; Cerquozzi, Carlo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A Method and apparatus for continuously forming concrete curbs is disclosed, in which the elevation of the top surface of the curb may be varied independently of the lower portion of the curb. A curb mold according to the invention employs a top plate to shape the top surface of the curb being formed within the mould. Positioning means such as a, hydraulic cylinder, mounted on the curb mold may be used to, controllably adjust the vertical position of the top plate relative to the curb mold so as to adjust the height of the finished curb. The design of the top plate ensures that an acceptable surface finish is obtained, regardless of the position of the top plate, so that manual refinishing …
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 June 3, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 3, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 3, 2013.
- 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.