Pipe coupling
CA 2439251 A1 · Owner: Davidson, Paul Anthony · Inventors: Davidson, Paul Anthony
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An assembly having a first body including a housing for interconnecting with a second body, the housing being provided with an inlet for receiving the end of the second body and the second body having a portion with an external diameter different from the remainder of the second body and means for securing said , second body end within said inlet said securing means having at least one first securing member to engage the second body at said different external diameter portion thereby to secure said second body end within said inlet.
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 14, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 14, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 2024.
- 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.