Apparatus for screening poultry at least at night from crawling vermin such as for instance poultry lice
CA 2408227 A1 · Owner: Te Wierik, Hendrikus Johannes Jozef · Inventors: Te Wierik, Hendrikus Johannes Jozef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus intended for screening poultry at least at night from crawling vermin such as for instance poultry lice the apparatus being provided with , poultry support means (4) on which the poultry sleeps the poultry support , means being connected to the fixed world via at least one connection while in , each connection (3, 5, 10), a trap (6) is incorporated for crawling vermin such as for instance poultry lice, so that poultry present on the poultry support means (4) is screened from the crawling vermin.
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 10, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 10, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 10, 2023.
- 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.