Inking unit
CA 2019899 C · Owner: Keller, Heinz · Inventors: Keller, Heinz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cut down, column-free inking unit suitable for use in rotary presses, comprising an ink fountain possessing a plate a doctor, blade, a steel fountain cylinder and a steel ductor cylinder that can be adjusted relative to the latter an application cylinder, a distributing cylinder and a transfer cylinder engaging with application cylinder, a smoothing cylinder a helical cylinder, serving the return of ink to the ink fountain said helical, cylinder comprising worm grooves running from the inside to the outside of such cylinder, as well as end disks that mesh with outside rings of fountain cylinder. The design of fountain ductor, and application cylinders with respect to circumference and …
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 June 26, 1990 and granted March 30, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 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
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.