Case for disk-type recording medium
CA 2103407 C · Owner: Mori, Takanori · Inventors: Mori, Takanori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A case for receiving disk-type recording medium made of paper and has a receiving chamber in which the disk-type recording medium is stored, the receiving chamber having a pair of walls faced to each other and each having a shape of bellows, a stopper is formed at a part of the receiving chamber, its lids or bottom, so that the disk-type recording medium is held in valleys of the bellows and by the stopper stably in a floated condition. This case can be used as an inner case to be inserted in an outer case.
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 18, 1993 and granted July 1, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 18, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 18, 2015.
- 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.