Transport means for transporting pieces three-dimensionally
CA 2046891 C · Owner: Erikkila, Jouni · Inventors: Erikkila, Jouni
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A transport means for transporting pieces three-dimensionally, wherein the sections belonging to a section pair are box-like; a traction member has been disposed over its essential length inside the section and secured to the carriage with a tension means; and the transport means comprises return sheaves which have been placed in pairs spaced at the distance of the section, with the carriage between the return sheaves; and the traction member has been disposed to run from the carriage over the return sheaves back to the respective carriage for forming a closed loop of the traction member and the respective carriage; and a power means has been arranged to move the traction member and by its …
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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 February 16, 1990 and granted November 9, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 16, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 16, 2012.
- 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.