Printing press comprising impression cylinders having replaceable sleevelike impression cylinder shells
CA 2030842 C · Owner: Lubke, Herbert · Inventors: Lubke, Herbert; Westermann, Heinz-Georg; Schroder, Volker
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An impression cylinder provided with a replaceable sleevelike impression cylinder shell is movably and releasably mounted in a printing press by means of a bearing in such a manner that the impression cylinder adjacent to its one stub shaft is adapted to protrude freely from the machine frame so as to permit a replacement of the impression cylinder shell. In order to permit a particularly simple replacement of the impression cylinder shell the bearings, consist of hinged bearings having bearing shell sections which can be swung off to a position in which they permit the impression cylinder to be swung out in a horizontal plane. The impression cylinder is provided at one end with a stub …
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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 November 26, 1990 and granted April 29, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 26, 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.