Method of controlling the operation of applying a succession of discrete coupling elements
CA 2010920 C · Owner: Sado, Chiharu · Inventors: Sado, Chiharu; Matsuda, Yasuhiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of controlling the operation of applying discrete coupling elements one at a time onto a stringer tape, which comprises counting the number N1 of coupling elements entering a chute and comparing the number N1 thus counted with the number R of revolutions of a motor driving a means of applying the elements to the tape thereby incessantly monitoring the inventory Nc of the elements in the chute.
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 February 26, 1990 and granted February 15, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 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.