Working machine with turning body
CA 2223284 A1 · Owner: Shin Caterpillar Mitsubishi Ltd. · Inventors: Nishikawa, Akitoshi; Yamagishi, Yoshinori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An openable and closable, swingable cover body is provided on a turning body such that even when the turning body turns in a state in which the cover body , is opened, possible breakage of the cover body and an obstacle caused by collision therebetween is avoided. When the cover body (8) is in an open posture, it is set not to move out of a turning path (S) of an upper turning body (3).
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 February 21, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 21, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 21, 2019.
- 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.