Storing and dispensing device for granular foodstuff, particularly dogfood
CA 2100441 A1 · Owner: Shany, David · Inventors: Shany, David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A storing and dispensing device for dogfood and the like comprises a bin having a funnel-shaped bottom portion which terminates in a vertical channel with an open bottom end. A feeding mechanism is vertically movable in the channel, either manually of automatically allowing a, given amount of food to be emitted at each operation. The mechanism includes an upper valve which normally closes channel bottom open, the two valves being connected by a shaft which permits their relative distance to be change for different food portions. Upon lifting the upper valve opens the bin and lets food flow into the channel which is now closed by the lower valve the food portion being defined by the space …
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 13, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 13, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 13, 2015.
- 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.