Kwik-krib/super forms
CA 2035670 A1 · Owner: Lustig, William H. · Inventors: Lustig, William H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
2-, The forming apparatus herein is horizontally elongated and highly flexible. This apparatus is constructed in various lengths and widths depending on the users requirements. Hereon vertical tabs are welded to the outside of the form at pre-determined intervals to support angled iron to achieve horizontally straight and sturdy forming. Whereby removing said angled iron, you are able to achieve any desired curve, whether concave or convex. A manually adjustable apparatus, consisting of two sections of tube steel, one having a larger inside diameter than the outside diameter of the other, wherein assembled are slidable for horizontal adjusting of the said forms. Hereon welded to the said …
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 February 4, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 4, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 4, 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.