Machine for embedding copper nuts in a workpiece
CA 2201015 A1 · Owner: Fan, Kan-Tsang · Inventors: Fan, Kan-Tsang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A machine for embedding copper nuts in pasted holes of a workpiece, including a machine base holding two horizontal sliding rails and four upright guide rods a mold carrier, reciprocated along the sliding rails a mold carried on the mold, carrier and having upright heating elements for holding and heating copper nuts, a slotted workpiece carrier reciprocated along the upright guide rods, a holding down plate moved along the upright guide rods and controlled to hold down the workpiece on the slotted workpiece carrier, a first air cylinder controlled to move the mold carrier and the mold into the working position a second air, cylinder controlled to lower the workpiece permitting pasted, …
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 March 25, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 25, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 25, 2019.
- 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.