System manager with hypertext control interface for interactive cable television system
CA 2273365 A1 · Owner: Soske, Joshua W. · Inventors: Nilo, Bruce D.; Soske, Joshua W.; Hoarty, W. Leo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a system manager for use with an interactive cable system. The cable system has (i) an information service network for delivering information services to subscriber televisions (ii) a plurality of , home interface controllers each home interface controller associated with a subscriber television and having a data transceiver operative over a data communications link to the headend, (iii) a plurality of subscriber selection devices, each such device associated with a home interface controller and in communication with the data transceiver thereof for permitting subscriber , interaction and (iv) a plurality of interactive controllers disposed at the , …
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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 December 9, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 9, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 9, 2019.
- 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.