Composite spindle
CA 2194258 C · Owner: Erwin, Ronald Dean · Inventors: Erwin, Ronald Dean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A spindle or baluster for use in a fence or deck railing which comprises a plastic outer shell having a first end section, a second end section opposite the first end section and a, middle section intermediate the first and second end sections. An elongate metal reinforcing element is positioned within the outer shell and extends from the first end section to the second end section. A rigid plastic foam is disposed within at least a portion of the first and second end sections and substantially surrounds portions of the metal reinforcing element.
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 2, 1997 and granted October 5, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 2, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 2, 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.