Device for moving large objects
CA 2004659 C · Owner: Inart Mernoki Es Muveszeti Szolgaltato Kisszovetkezet · Inventors: Viragh, Lajos; Moldovan, Kristof; Viragh, Eva
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an device for moving and/or arranging large objects, e,g, containers or, vehicles by rollers or roller conveyers. According to the present invention rollers are arranged in rectangular blocks, so that the rollers in the individual blocks are parallel with each other, and are at an angle to those in the adjacent blocks, and each block is vertically movable. At least a certain part of the rollers in the blocks is driven. The driven rollers may be provided with independent or common drive, e.g. chain drive. Generally the blocks are arranged side by side, and the rollers in it are at right angle to each other. In given case especially when small and light pieces e.g. …
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 December 5, 1989 and granted March 28, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 5, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 5, 2011.
- 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.