Screen deck
CA 2074773 A1 · Owner: Ross, Victor Emul · Inventors: Ross, Victor Emul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A screen deck apparatus has a screen deck that includes a series of flexible, parallel rods and means for flexing the rods in a direction transverse to their length. When material for screening is deposited on the screen deck, the vibrations set up as a result of transverse flexure of the rods serve to break up any agglomerated particles.
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 28, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 28, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 28, 2014.
- 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.