Two-stage metering pin
CA 2050983 A1 · Owner: Ziggity Systems, Inc. · Inventors: Hostetler, Eldon
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A metering pin is provided having two portions of different external configuration, each of which portions are insertable into the fluid flow path for restricting fluid flow under different actuating conditions. These two portions can be dimensioned to be readily retrofit into various existing nipple drinkers according to the configuration of the drinker inlet. The specific dimensions of each portion relative to the drinker inlet can be selected according to desired flow rates at different levels of poultry growth.
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 September 9, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 9, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 2013.
- 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.