Multipurpose bucket structure
CA 2122890 C · Owner: Tanada, Katsunori · Inventors: Tanada, Katsunori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multipurpose bucket structure for carrying long materials, for pulling down a building into pieces and taking away the pieces, for disassembling an automobile and taking away the parts, for working with a large-sized tool, for digging the ground for putting, the area destroyed by a disaster in order for carrying, ready-mixed concrete and for carrying concrete blocks or secondary products of concrete. In the bucket structure, an openable bucket is attached in an openable manner to a body bucket by an actuating cylinder, and the buckets are formed with tooth portions for grasping the materials. The bucket structure thus constructed of those body bucket and openable bucket can be swiveled …
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 May 4, 1994 and granted August 8, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 4, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 4, 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.