System for preparing wires made of steel, iron, or ferrous materials
CA 2204550 A1 · Owner: Esposito, Santo · Inventors: Esposito, Santo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
System for preparing wires made of steel iron, or, ferrous materials in general for drawing which comprises a phosphating station that is substantially constituted by a vat for containing a phosphating solution and by a drum for winding and unwinding the wire to be treated. The drum is at least partially immersed in the phosphating solution and can be actuated with a rotary motion about its own axis to gradually wind the wire to be treated and gradually release the treated wire.
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 May 6, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 6, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 6, 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.