Method of sensing the variation of consistensy of a fabric and apparatus for carrying out such method
CA 2093492 A1 · Owner: Migliorini, Pier Lorenzo · Inventors: Migliorini, Pier Lorenzo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The apparatus comprises an optical reflecting sensor an operational amplifier buffer with the electrical input connected to the output of the optical sensor, means for averaging and delating a signal picked up at the output of the sensor means for the differential amplification of the signals on output respectively from the buffer and the means, and means for comparing the signal outputting from the means with a known predetermined signal. (Fig. 1)
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 April 6, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 6, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 6, 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.