Expired Canadian patentCanada
Electric trailer brake controller
CA 2484317 C · Owner: Hayes Lemmerz International, Inc. · Inventors: Robertson, Charles L.
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 micro processor based electric brake controller includes an internal Read Only Memory that stores operating code and an external Electrically Erasable Read Only Memory that stores operating parameters supplied by the vehicle operator.
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 October 8, 2004 and granted July 2, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 8, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 8, 2026.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 8, 2004
GrantedJuly 2, 2013
Term endedOctober 8, 2024
Patent numberCA 2484317 C
Classification (IPC)B60T7/20 +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.