Apparatus for removing fluid from overlapping sheets of material
CA 2000288 A1 · Owner: Scalzitti, Attilio · Inventors: Scalzitti, Attilio; Snyder, Clarence A.; Scalzitti, Attilio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides an improved apparatus particularly adapted for removing fluid from overlapping sheets of material, said apparatus comprising an inverted T-bar adapted for applying stationary pressure to overlapping sheets disposed beneath said T-bar and at least two, roller assemblies, said roller assemblies each including a lower pressure roller and an upper drive roller, said drive roller being in frictional contact with both said pressure roller and a superstrate positioned above said drive roller, at least one roller assembly being positioned on each side of said T-bar such that said pressure roller and said drive roller are substantially parallel thereto and said, roller …
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 October 6, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 6, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 6, 2011.
- 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.