Digital disk changer apparatus
CA 2063570 C · Owner: Boulanger, Gilles · Inventors: Boulanger, Gilles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A digital disk changing apparatus containing a plurality of disks held vertically in place within slots said slots, radiating from a central point and forming a toroidal magazine around a player\recorder means embodied in the form of a telescopic arm and wherein said arm is mounted in such a way as to be able to translate around a vertical axis situated at the center of the magazine and positionable in alignment with any one of the plurality of disks so that said telescopic arm can reach out onto the disk, spin said disk by applying force at said disk's Rotational axis and then read or record from and onto said disk while said disk remains in its slot.
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 March 20, 1992 and granted January 21, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 20, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 20, 2014.
- 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.