Electronic buying guide architecture
CA 2480091 A1 · Owner: Laughlin, Matthew J. · Inventors: Laughlin, Matthew J.; Campbell, Colin P.; Kay, Matthew W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An interactive television commerce system includes a video broadcast distribution network having multiple in-band and out-band channels. A video server (1000) stores a plurality of video clips and has images promoting specific product and associated interactive data embedded in the video images. A commerce transfer point server (24) broadcasts via in-band channels a first commerce related video images promoting multiple different products and associated interactive data embedded in the video images and a unique video clip having video images promoting differents products promoted in the video images of the first commerce related program. A network controller receives via the …
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 December 6, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 6, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 6, 2024.
- 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.