Expired Canadian patentCanada
Systems and methods for caching data in media-on-demand systems
CA 2425482 C · Owner: Uv Corp. · Inventors: Ellis, Michael D.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Systems and methods may be provided for retrieving non-on-demand media data and on-demand media data that is provided by separate data sources. On-demand media data may be cached to reduce system latencies and the burden on the distribution network.
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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 October 9, 2001 and granted December 1, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 9, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 9, 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.
FiledOctober 9, 2001
GrantedDecember 1, 2015
Term endedOctober 9, 2021
Patent numberCA 2425482 C
Classification (IPC)H04N21/45 +2 more
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.