Insulated cast concrete wall system and insulation tie
CA 2402926 A1 · Owner: Mccann Redi-Mix Inc. · Inventors: Mccann, Patrick J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a tie for securing insulation to a cast concrete wall comprising: a, head; a shaft attached to the head and having a longitudinal axis the shaft, comprising a series of barbs positioned at pre-determined longitudinal positions, along the longitudinal axis each successive barb being rotated about the longitudinal axis by a predetermined rotational increment from the immediately preceding barb; and, a tip on the shaft. There is also disclosed a system for constructing an insulated concrete wall comprising: a set of concrete forms comprising two opposing partitions set apart a pre-determined distance; a sheet of, insulation secured between the partitions adjacent one of the …
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 12, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 12, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 12, 2024.
- 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.