Guard rail assembly
CA 2087988 C · Owner: Meridian Rail Track Products Corp. · Inventors: Young, Keith; Remington, James A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The guard rail assembly (10) for mounting a guard bar (12) has a support bracket (36) for mounting the guard bar (12), a support block (100) and a hook (70) for engaging the guard bar (12) and utilizing an elastic fastener (150) which engages the support block (100) and the hook (70) and draws the hook (70) and bar (12) towards the support bracket (36) to lock the guard bar (12) on the support bracket (36).
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 18, 1993 and granted March 21, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 18, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 18, 2015.
- 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.