Working machine system
CA 2015245 C · Owner: Ezawa, Naoya · Inventors: Ezawa, Naoya; Takarada, Shinichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A working machine system is arranged in such a manner that at least one large arm constituted such that a small arm can be attached thereto is attached to the working machine body and at least one large arm is detachably attached to the working machine body. Thus sufficient stiffness and strength of the arms can be secured to obtain desired positioning accuracy while restricting an excessive weight increase. In addition any of the arms can be replaced, the number of the cables can be reduced, and the cable can thereby be arranged easily.
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 April 24, 1990 and granted May 31, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 24, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 24, 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.