Surface inspection apparatus for substances
CA 2032349 A1 · Owner: Kozuka, Yuji · Inventors: Kanzaka, Takashi; Sugihashi, Osamu; Kozuka, Yuji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
By the present invention at the surface inspection of, inspected objects such as band-like running material like metal paper or textile, without stopping or speed reduction of the inspection line, against the occasional occurrences of defects the inspected object surface image and defect data are recorded so that at the necessary time the defect data may be reviewed to make a judgement of acceptance or rejection which is highly effective on production controls.
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 December 14, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 14, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 14, 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.