Welding handle clamp
CA 2314795 A1 · Owner: Harger, Timothy R. · Inventors: Harger, Timothy R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Handle clamps and a clamping kit for clamping or clamping and fastening a mold during exothermic welding are disclosed in which a single handle clamp may be utilized in at least three different exothermic welding operations. The handle clamp may be utilized with or without removable support arms to simply clamp the mold parts together where only the ends of cables are to be connected together within a cavity of the mold. If it is desired to connect the cables to either a flat surface or a curved surface, the support arms are attached to the handle clamp, and either a magnetic fastening assembly or a chain assembly is attached to the support arms to fasten the handle clamp and mold to 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 August 1, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 1, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 1, 2022.
- 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.