Procedure to establish a measuring point to determine the thickness of the layer of moistening agent on an offset printing plate
CA 2009644 C · Owner: Haase, Josef · Inventors: Kipphan, Helmut; Haase, Josef; Joss, Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a procedure to establish a measuring point lying in an ink-free area for the registration of the thickness of the layer of moistening agent on the surface of an offset printing plate, whereby a measuring head scans the plate surface in a search run, and an evaluation of the measurement data thus obtained is performed; the invention proposes an evaluation of the measurement data in order to obtain an optimal working method in, particular as regards positioning technology in such, a manner that the measuring point (17) lies in a vertical zone (8) of the offset printing plate (2) with the smallest possible average area coverage. Main Figure 1
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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 February 8, 1990 and granted January 25, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 8, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 8, 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
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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.