Apparatus and method for printing plate cylinder -- impression cylinder registration
CA 2042943 C · Owner: Zeman, Dale E. · Inventors: Hertel, James E.; Zeman, Dale E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus and method for printing plate cylinder -impression cylinder registration for a multi color flexograhpic press wherein pin means are provided on the plate cylinder gear and finger means provided on the impression cylinder gear and when the two come in contact upon rotation of the impression cylinder gear, the plate cylinder gear rotates through a small arc during which time the gears are brought into meshing engagements.
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 May 21, 1991 and granted August 7, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 21, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 21, 2013.
- 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.