Diversions for television viewers
CA 2176646 C · Owner: Bertram, Randal Lee · Inventors: Bertram, Randal Lee
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Television viewers are presented with the opportunity to be diverted during intervals such as display of commercials, delays pending initiation of a near video on demand signal stream and the like. The diversions take the form of freezing a frame of the video being supplied and then overlaying on the, frozen frame various game playing constructs manipulable by the remote control used to perform other control functions for the display device. The display device may be a television receiver linked to a set top device, an intelligent television receiver or a personal computer provided with television image reception and display capability.
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 May 15, 1996 and granted May 23, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 15, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 15, 2018.
- 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.