Top guide with spring loaded wheel
CA 2273463 C · Owner: Home Decor Company · Inventors: Jacobs, Kenneth
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wheeled top guide for rolling movement of a door along an inverted U-shaped track includes a housing for mounting on the door with an upwardly-extending axle and a, roller thereon for rolling engagement with one side wall of the track. A vertically-, oriented torsion member is seated in the housing and has a verticallyextending elongated, torsion rod having its lower end fixed on the housing a horizontally-, extending arm, having one end secured to the upper end of the torsion rod and extending away from the, first axle, and an upwardly-extending axle adjacent the other end of the arm. A second, roller on this axle is in rolling engagement with the other side wall of the track and …
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 June 2, 1999 and granted August 13, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 2, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 2, 2021.
- 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.