Compact disc shaped like a calling card
CA 2339874 A1 · Owner: Forgues, Michel · Inventors: Chouraqui, Jean; Forgues, Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a compact disc consisting of a support (210) treated on one surface for receiving a film for storing data arranged in the form of a circular ring (220) of digital data to be read by a compact disc player (100) comprising a removable drawer (110) provided in its base a first circular cavity (120) having depth and diameter substantially greater than those of the disc so as to receive position and wedge the selected disc. Said compact disc is characterised in that its support (210) adopts the shape of a rectangular calling card comprising a film for storing data in the form of a circular ring (220) whereof the outer circle is inscribed in said rectangle and means for …
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 September 3, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 3, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 3, 2020.
- 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.