Apparatus for interconnecting concrete wall forms
CA 2081579 A1 · Owner: Boeshart, Patrick E. · Inventors: Boeshart, Patrick E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for interconnecting a pair of spaced-apart form panels includes a tie having opposing ends inserted through apertures in the panels, and retainer plates on each end to lock the panels in position. Each tie includes an elongated strap having an expanded lug at each end to prevent movement of the panel inwardly past the lug. A loop member is mounted on each lug which projects outwardly through the panel and which will receive the retainer plate to lock the panel in position on each end of the strap. The retainer plate has an aperture therethrough and a finger extending downwardly into the aperture. The retainer plate finger is journaled through the loop of the strap to lock 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 October 28, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 28, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 28, 2014.
- 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.