Expired Canadian patentCanada
Still frame video in index
CA 2283440 C · Owner: Index Systems, Inc. · Inventors: Yuen, Henry C.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A frame (42b) of the video being recorded or previously recorded on tape (42) is captured and stored for use at the time of displaying the directory of programs (33a) stored on the tape (42).
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 March 7, 1997 and granted September 23, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 7, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 7, 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.
FiledMarch 7, 1997
GrantedSeptember 23, 2003
Term endedMarch 7, 2017
Patent numberCA 2283440 C
Classification (IPC)H04N5/78 +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.