Fluid treatment apparatus and method
CA 2101902 A1 · Owner: Jones, Jeffrey D. · Inventors: Moore, Ronald J.; Jones, Jeffrey D.; Hare, David D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract A new apparatus for treating substrates with fluids as well, as a corresponding fluid treatment method is disclosed. The, new apparatus includes a new configuration of fluid jet injectors which substantially overcomes the problem of dragout, in which fluid impinged upon an area of a substrate is retained on that area, preventing fresh fluid from reaching the impinged area. This new configuration also avoids imposing torques on substrates, and substantially reduces the need for rollers and guides for transporting substrates.
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 August 4, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 4, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 4, 2015.
- 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.