Melt transfer system and bushing assembly therefor
CA 2280599 A1 · Owner: Gellert, Jobst Ulrich · Inventors: Gellert, Jobst Ulrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A melt transfer system is provided for a stack mold. The melt transfer system includes a first bushing assembly defining at least a portion of a first runner passage and a second bushing assembly defining at least a portion of a second runner passage the first and second runner, passages being in communication with each other when the melt transfer system is in a flow position and the first and second runner passages being sealed to communication by the bearing surface of the opposing first or second bushing assembly when the melt transfer system is its a sealed position at least one of said bushing assemblies being moveable with an actuation between said flow position an,d said sealed …
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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 August 23, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 23, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 23, 2021.
- 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.