Transporting apparatus
CA 2247320 A1 · Owner: Campbell, John · Inventors: Campbell, John; Campbell, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A transporter for lifting and transporting a paper reel having a central core. The transporter has an upright frame (2) at the base of which are provided a pair of ground engaging wheels (4). A generally cylindrical mandrel (7) arranged to be received by the core of a reel to be lifted projects from the , front of the frame (2). The mandrel comprises a deflector member (10) which is arranged to be deflected outwardly relative to the mandrel axis (11) as the transporter frame (2) is tilted backwards to cause the mandrel to take the weight of a paper reel. The deflector member (10) is thus forced against the inside of the reel core, causing the mandrel to self-lock within the core.
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 February 27, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 27, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 2019.
- 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.