Optical disc incorporating a relief pattern
CA 2415799 A1 · Owner: Moloo, Imitiaz · Inventors: Moloo, Imitiaz; Boga, Munirun
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides an optical disc for storing information wherein the optical, disc comprises a microscopic relief pattern on one side thereof providing a , structure for, storing information in a digital format. The opposite side of the optical disc comprises a, macroscopic relief pattern that can provide a means of protection for the optical disc.
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 January 8, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 8, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 8, 2025.
- 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.