Device for continuously monitoring the needles of a knitting machine during operation thereof
CA 2136551 C · Owner: Microtex S.A.S. Di Dott. L. Michetti · Inventors: Michetti, Paolo; Michetti, Andrea
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The needles (1) of a knitting machine are continuously monitored during operation of the machine, by an optical head (6) comprising a light source (23) and an electro-optical receiver which receives the light beam after that the latter has crossed the area (24) of passage of the needles (1). The output signals from the receiver are sent to an electronic control unit (27).
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, 1993 and granted December 1, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 21, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 21, 2015.
- 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.