Lock assembly with motorized power screw
CA 2226645 C · Owner: Nunez, Paul · Inventors: Nunez, Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A lock assembly (10) comprising a casing (12) a lever, (14) rotatably attached to the casing (12) the lever (14) having a, spindle (18) attached thereto a motor (30) secured to the casing, (12) the motor (30) having a shaft (31), a substantially cylindrical member (40) attached to the motor shaft (31) and having a helically extending groove, and an interfering member (50) threadedly and non-rotatably engaged with the helically extending groove of the cylindrical member (40). The interfering member (50) moves into the locked position to prevent rotation of the lever (14) when the motor shaft (31) rotates in one direction. The interfering member (40) moves into the unlocked position to allow …
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 13, 1997 and granted June 12, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 13, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 13, 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.
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.