Apparatus for laying pipeline
CA 2356463 A1 · Owner: Mcivor, Garry · Inventors: Mcivor, Garry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for producing a pipeline includes a plurality of vehicles for straddling a ditch. Al of the vehicles are carried by wide relatively soft , tires for, minimizing damage to the soil surface. A first vehicle receives aligns and , maintains, sections of pipe in position over a trench while effecting a first weld. Additional, welding of the joints between pipe sections is effected in successive vehicles, and, the weld joint is inspected and then coated with plastic. Finally the , pipeline is, deposited in the trench and the latter is backfilled by the last vehicle in the train of, vehicles.
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 August 24, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 24, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 24, 2023.
- 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.