Trash rack with non-metallic reinforcing rod
CA 2249803 C · Owner: Hoh Systems Inc. D.B.A. Hydrothane Systems · Inventors: Pastore, Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A trash rack for filtering large volumes of intake water generally of the type available to power-generating facilities. The trash rack includes reinforcing rods fabricated of non-metallic materials in a pultrusion fabrication process. The pultruded reinforcing rods are substantially lighter than prior steel reinforcing rods. The pultruded rods are flexible enough to give under impact and high-loading without fracture or permanent distortion yet are strong enough to, withstand the type of loading commonly experienced by such large-volume trash racks.
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 October 6, 1998 and granted August 29, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 6, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 6, 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.