Converter oxygen puncher lance
CA 2416189 A1 · Owner: Haggarty, Clayton Alan · Inventors: Haggarty, Donald Gordon; Haggarty, Clayton Alan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A SOLENOID OPERATED OXYGEN VALVE #6 CONNECTED TO MAIN OXYGEN LINE A FLEXIBLE, METAL CLAD HOSE #5 CONNECTED FROM VALVE TO TUYERE NUT #4 WHICH INTURN HAS A 1/2 INCH DIAMETER LANCE PIPE #2 THREADED INTO 1/2 INCH TAPPED CENTER HOLE
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 January 23, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 23, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 23, 2025.
- 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.