Liner bag used for container
CA 2003257 C · Owner: Niioda, Yutaka · Inventors: Yuasa, Yoshiaki; Yasuzawa, Kazuo; Naniwa, Hisamoto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A liner bag used for a container having a bag main body comprising respective races conforming the inner wall shape of the container when spread at the inside thereof and retained by a bulkhead detachably mounted to a rear side, i.e. a side of a door of the container and a pull-, out sheet laid over a bottom face of the bag main body for transporting grain cargoes, etc. loaded on the upper surface thereof toward the door, wherein a rear end of a bottom face of the bag main body is extended bendably rearwardly beyond a rear face, the rear end of the pull-out sheet is foldably pulled-out of the bag main body through an opening formed in the lower end of the rear race independent of the …
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 November 17, 1989 and granted October 18, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 17, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 17, 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.