Circuit breaker
CA 2437111 C · Owner: Lockhart, Jeffery Wayne · Inventors: Adamson, Wayne Gerald; Lockhart, Jeffery Wayne; Simms, Kevin Anthony
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A circuit breaker (90) includes a housing (93) separable contacts (5), an , operating mechanism (96) having a pivotally mounted operator handle (91) for opening and closing the separable contacts (5) and a trip mechanism (9,53) , releasing the operating mechanism (96) to move the operator handle (91) to its tripped position. A micro-switch (92) includes an actuator lever (97) movable between an actuated position and a non-actuated position and adapted to engage a surface (95) of the operator handle (91). The micro-switch (92) also includes a normally open contact (98) having a closed state corresponding to the actuated position and an open state corresponding to the non-actuated …
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 January 31, 2002 and granted September 11, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 31, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 31, 2024.
- 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.