Interactive television program guide system for determining user values for demographic categories
CA 2775730 C · Owner: Uv Corp. · Inventors: Ellis, Michael D.; Knee, Robert A.; Reynolds, Steven J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An interactive television program guide system for determining user input values for demographic categories is provided. The system includes user television equipment (44) having a receiver for receiving program guide information for the interactive television program guide a user input receiver , (62) for receiving user input from user interface such as a , remote control (54), a microprocessor which utilizes the user input received to determine user values for demographic categories, and memory for storing the user values determined. In one illustrative use of the system for targeting advertisements to a user of the interactive television program guide, the receiver also receives …
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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 May 13, 1999 and granted April 18, 2017. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 13, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 13, 2021.
- 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
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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.