Dropper assembly for liquid feed and method of feeding liquid composition to a freezing chamber
CA 2216375 C · Owner: Jones, Curt D. · Inventors: Jones, Curt D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dropper assembly (10) for feeding liquid composition (20) to a freezing chamber (12) comprises a tray (28) having a plurality of feed elements (40) that are designed to provide regulated discharge of the liquid composition (20) from the tray (28) and to feed the liquid composition (20) into the freezing chamber (12) in uniformly sized droplets (38). The feed elements (40) each comprise a projection (44) that is downwardly disposed in relation to the tray (28). The tray (28) has a bottom wall (30) with a plurality of orifices (42), each orifice (42) associated with a corresponding projection (44). The projection (44) has an inlet opening (48) associated with the corresponding …
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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 28, 1996 and granted October 9, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 28, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 28, 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.