Carbide tip and pick
CA 2078417 A1 · Owner: Hydra Tools International Plc · Inventors: Mcshannon, Gordon Alan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A carbide mineral cutting tip (5) comprises a solid carbide body having at least one front face (6); at least one top face (9); a bottom, seating face (12); a rear face (20); and lateral, side faces (13), the tip (5) comprising a main tip portion (14) and an extended tail portion (15) the rear face (20) being provided at the end of the extended tail portion (15), whereby the front-to-rear length A to C of the tip (5) approximates to twice the depth of the tip (5) represented by the top-to-bottom length D to E of the front face (6), with two faces (10) converging to an apex (11) defining the top face (9) of the main tip portion (14) and with the top face of the tail portion (15) defined by …
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 September 16, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 16, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 16, 2014.
- 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.