An undersea drilling template
CA 2267019 A1 · Owner: Goodwin, Michael James · Inventors: Goodwin, Michael James; Theiss, David Harold
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An undersea drilling template (20) adapted to be lowered on to a seabed (22) by a drill pipe (24). The template (20) comprises a template base (28) and at , least one, arm (30) having a releasable clamping assembly (42) for releasably connecting the, template (20) to the drill pipe (24). The clamping assembly (20) is adapted to be, clamped to the drill pipe (24) during lowering of the template (20) and release from the, drill pipe (24) when the lowering is completed.
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 26, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 26, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 26, 2021.
- 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.