Drive mechanism for the air circulating system of a battery of cages for poultry housing
CA 2012283 C · Owner: Firma Salmet Gesellschaft Mit Beschrankter Haftung & Co. Kommanditgesellschaft · Inventors: Lackner, Karl Horst
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A drive mechanism for an air circulating system for a battery of poultry cages for housing poultry with the air, circulating system including air ventilator flaps pivotally suspended in chambers. The drive mechanism includes traction members driven in a reciprocating fashion with the, traction members including compression springs surrounding the respective traction members.
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 March 15, 1990 and granted May 19, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 15, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 15, 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.
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.