Method of operating a printing machine during start-up or run-on
CA 2013363 C · Owner: Schneider, Josef · Inventors: Schneider, Josef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
During start-up or run-on of a printing machine a printed image is transferred from a printing cylinder (2, 24, 34) on a control or test cylinder (5 26,35) which, has a surface representative of the surface of a substrate (6, 25, 33) on which printing, later on is to be effected, for example a white ceramic surface of roughness comparable to that of paper. The image transferred on the control or test cylinder is optically tested while the cylinder rotates over a first partial circumferential range (7 27, 36), and data derived, either by human observation or by electrooptical sensors (8, 28, 37) to permit readjustment of operating systems of the printing machine in accordance with desired …
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 March 28, 1990 and granted April 13, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 28, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 28, 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.