Disk cartridge apparatus
CA 2333849 A1 · Owner: Kusui, Yoshio · Inventors: Sanada, Yotaro; Netsu, Naohiro; Kusui, Yoshio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is obtained a disk cartridge apparatus in which when a plurality of disk cartridges which are different in size and thickness are loaded an a drive device the heights of, respective switch detection surfaces of disk cartridges can be horizontally aligned with a mode detection switch of the drive device. A disk cartridge apparatus comprises disk cartridges (1) (12) stored within cartridge housings different in size and thickness in which disks having different diameters are stored mis-erase prevention plugs (44) (49) including mis-erase prevention detection holes (45) (50) having switch detection surfaces (46) (51) on the disk cartridges (1) (12) a cassette, compartment (23) including …
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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 1, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 1, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 1, 2023.
- 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.