Retainer for welding wire spool
CA 2232102 A1 · Owner: Verrilli, Brian L. · Inventors: Boehnlein, Lawrence A.; Grimm, Daniel N.; Verrilli, Brian L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A spindle assembly for supporting a spool of welding wire on a wire feeder which spindle, assembly comprising: a spindle in the form of a cylindrical spool receiving body having a given diameter, a mounting end, a spool loading end spaced from the mounting end and a groove in the, body adjacent said spool loading end and extending concentrically around the body of the spindle; and, a retaining collar with an outwardly extending spool retaining member a central opening means, for allowing the collar to slide on the cylindrical body of the spindle and a mechanical lock element carried by the collar and moveable between an unlocked position with the lock element retracted from the groove and a …
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 13, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 13, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 2020.
- 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.