Barrier device
CA 2278232 C · Owner: The Yodock Wall Company, Inc. · Inventors: Yodock, Steven J.; Yodock, Leo J. Iii; Yodock, Leo J. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A barrier device comprising a top wall (12) a bottom wall (14), opposed end , walls (16 18), and, opposed sidewalls (20, 22) each including an elongated vertically extending curb reveal (26) connected to the bottom wall (14) a , substantially vertically extending upper section (32) connected to the top wall (12), an angled intermediate section (30) connected at one end to the upper section (32), and a substantially horizontally extending step (28) connected between the other end of the intermediate section (30) and the curb reveal (26). Each wall is formed of a resilient plastic and the walls are , interconnected to define a hollow interior which can be filled with a ballast material …
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 29, 1998 and granted May 13, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 29, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 29, 2020.
- 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.