Expired Canadian patentCanada
Safety device for a load carrying vehicle
CA 2536183 C · Owner: Cassidy, Robert Dennis Hewson · Inventors: Cassidy, Robert Dennis Hewson; Ayotte, Richard Edward
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 safety device for use with a load-carrying vehicle which includes a lamp and a flag to warn vehicles of overhanging or extended loads
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 February 13, 2006 and granted February 3, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 13, 2026.
- 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.
FiledFebruary 13, 2006
GrantedFebruary 3, 2015
Term endedFebruary 13, 2026
Patent numberCA 2536183 C
Classification (IPC)B60Q7/02
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.