Tube cutting guide
CA 2113293 A1 · Owner: Charest, Michel · Inventors: Charest, Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the disclosure A tube cutting guide for cutting a tube such as a conventional cardboard tube with a knife such as a conventional utility knife, the knife having a pencil-like handle and a blade projecting longitudinally from the handle. The guide allows for circumferential and helicoidal cutting as well as longitudinal splitting of the tube. The guide has a hollow cylindrical body and a set of radial slots extending radially through it. Each one of the slots is configured to fittingly receive the blade of the knife. In operation the tube being, cut is adapted to be inserted in the cylindrical body and the latter is adapted to be moved relatively to the tube while the blade is …
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 January 12, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 12, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 12, 2016.
- 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.