Apparatus for applying a treatment fluid having pivotal nozzle combs
CA 2016840 C · Owner: Kurschatke, Wolfang · Inventors: Kohnen, Julius; Keller, Alfred; Kurschatke, Wolfang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for applying a treatment fluid such as dye, onto an advancing web of material has a run-off surface sloping down toward the web that extends above and over the width Or the web. The dye flows onto the web from the lower edge of the run-off surface. The dye is applied onto an upper zone of the run-off surface from individual nozzles which are, a constituent part of nozzle combs that are pivotable about a transverse axis between a first position disposed above the run-off surface and a second position over a run-off gutter.
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 May 15, 1990 and granted September 7, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 15, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 15, 2012.
- 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.