Holder system for a printing machine doctor blade
CA 2013255 C · Owner: Kobler, Ingo · Inventors: Kobler, Ingo; John, Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A doctor blade holder has two holder parts (4 5), to clamp a doctor blade (3) with a straight edge therebetween. The holder parts define opposed holder surfaces (6 7), which, at least in part, form surfaces of an elliptical cylinder which has a cross-sectional form in the shape of an ellipse (Z) which has a longitudinal axis (B-B) which intersects the longitudinal axis (A-A) of the cylinder by an angle of inclination (.alpha.) which, customarily is in the order, of between 0.1° to 1° but may be substantially larger. The minor half-axis of the ellipse (Z) 18 equal to the radius (r) of the printing machine cylinder (1) and the major halfaxis of the ellipse (Z) is longer than the length (1) of …
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.