Expired Canadian patentCanada
Methods and systems for removing floating solid waste from the surface of a watercourse
CA 2525429 C · Owner: Tesomas Holdings Llc · Inventors: Lovestead, H. Scott; Richardson, James E.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A floating pond skimmer is connected to remote filter. The skimmer includes a vortex (38), an on-board pump (32) with a grinding impeller an adjustable , ballast (52, 54) and an anchor.
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 May 12, 2004 and granted January 21, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 12, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 12, 2026.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 12, 2004
GrantedJanuary 21, 2014
Term endedMay 12, 2024
Patent numberCA 2525429 C
Classification (IPC)E02B15/04
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.