Adjustable bent sub
CA 2045888 A1 · Owner: Moore, Donald · Inventors: Moore, Donald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An adjustable bent sub consisting of a tubular body having a first end and a second end. The tubular body has a first portion adjacent the first end having a first axis and a second portion adjacent the second end having a second axis which is offset from the first axis. A sleeve is rotatably secured to the second portion of the tubular body. The sleeve has a First end, a second end and an, interior surface with internal surface means. The sleeve has a first portion adjacent the first end having a first axis, and a second portion adjacent the second end having a second axis which is offset from the first axis. An intermediate member is non-rotatably secured to the tubular body. The …
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 June 27, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 27, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 27, 2013.
- 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.