Tool and method for forming cylindrical containers
CA 2268422 C · Owner: Atlantic Innovative Enterprises · Inventors: Gordon-Clements, Rhonda
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The cylindrical container is made of paper and has a rim a seam along the vertical dimension thereof and an overlap in that seam. The bottom end of the container has a twisted and flattened tuft of paper. A fold is provided around the rim. This fold encloses the overlap crosswise for retaining the shape of the container. The paper container is usable as a seedling pot. There is also provided a hand tool for manually forming these paper containers. This hand tool comprises a cylindrical body having a diameter a closed end and an open end, and a handle mounted to the closed end. The hand tool also has a cavity extending inside the cylindrical body from the open end where the tuft of paper is …
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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 April 9, 1999 and granted December 16, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 9, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 9, 2021.
- 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.