Method and means for improved sidewall ventilation
CA 2224255 C · Owner: Eakin, George R. · Inventors: Eakin, George R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A ventilation inlet (10) includes a housing having two air inlets apertures (28, 30), a solid wind-deflecting rear wall (20) and a baffle, supported for pivotal movement about a pivot point. A spring (26) or other biasing mechanism is operatively connected to the baffle (22). Air entering the housing opens the baffle (22) and enters the livestock confinement building. The baffle (22), positioned responsive to the amount and pressure of air entering the housing directs the flow of air into , the confinement space so as to optimize the speed and direction of the external fresh air entering the confinement space. The design of the ventilation inlet (10) is optimized by calculating the …
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 5, 1996 and granted August 21, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 5, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 5, 2018.
- 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.