Photoelectric detector for a register control device within a rotary printing machine
CA 2175979 C · Owner: Monney, Patrick · Inventors: Monney, Patrick
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The detector comprises a row of scanning devices arranged in front of the web (10) and crosswise to the travelling direction. Each device comprises one or two lighting optical fibers (30) coupled to an unique scanning optical fiber (40) leading the reflected light to a photodiode being a part of a row situated behind in the machine. More particulary, the extremity of each scanning optical fiber (40) is in optical rigid relation with a coupled spherical or semispherical lens, and this by means of an optical glue.
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 7, 1996 and granted May 2, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 7, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 7, 2018.
- 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.