Expired Canadian patentCanada
Video tripwire
CA 2545535 C · Owner: Kalapa, Pramod · Inventors: Lipton, Alan J.; Clark, John I.W.; Yen, Chung-Cheng
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 video tripwire system may enable a user to enter a video tripwire by drawing it on a video image or on a snapshot from a video stream. This drawing may be enabled by a graphical user interface.
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 November 12, 2004 and granted January 26, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 12, 2024.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 12, 2004
GrantedJanuary 26, 2016
Term endedNovember 12, 2024
Patent numberCA 2545535 C
Classification (IPC)H04N7/18 +1 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.