Polygonal bait station
CA 2021435 C · Owner: Brown, L. Dawn · Inventors: Brown, L. Dawn; Stack, Malcolm G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bait station (10) used in the reduction of pest populations is polygonal, having a first wall (14) that is straight and adapted to fit against a room wall a second, wall (16) with two portions at right angles adapted to fit in a room corner, two threshold portions (20,22) extending between the first wall (14) and the second wall (16) and, third wall portions (18) oriented in a direction parallel to adjacent portions of the second wall (16) to define a right-angle passageway (34) between the second wall (16) and the third wall portions (18) and a bait containment chamber (40) between the first wall (14) and the third wall portions (18). The threshold portions (20,22) have pest access …
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 July 18, 1990 and granted August 26, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 18, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 18, 2012.
- 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.