Eavestrough easy-clean system
CA 2206414 C · Owner: St-Jacques, Jean L. · Inventors: St-Jacques, Jean L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An easy clean system 1 for a gutter 2 at the eaves of a roof 8 on a building 7 comprising a free flow unit (3) connected to a downpipe (5) in the gutter (2) so, that the system 1 will extend vertically down along an exterior wall of the building 7 and carry rainwater away from the roof 8. A facility 4 within the system 1 is for separating any dirt and debris 9 that falls into the rainwater in the gutter 2, so that the rainwater will flow without obstruction out through the facility 4 and out the downpipe 5
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 June 13, 1997 and granted December 7, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 13, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 13, 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.