Pressure flow system and method for treating a fluid permeable workpiece such as bone
CA 2446410 A1 · Owner: Dowd, Michael · Inventors: Morris, John W.; Scarborough, Nelson L.; Dowd, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pressure flow system and method for its use are provided for contacting the interior of a, fluid permeable, e.g. porous workpiece. The system includes a fluid pressure chamber, having an inlet port and an opening formed in one of the chamber walls. An adjustable seal, capable of providing a fluid-tight seal about the exterior of a workpiece having a non-uniform, surface is positioned within the opening. Fluid under pressure is supplied to the pressure, chamber to force fluid to flow through the internal matrix of the workpiece. In a preferred, embodiment, the workpiece is a bone or a section thereof and the fluid is , forced to flow from the endosteal portion of bone to the …
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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 11, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 11, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 11, 2020.
- 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
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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.