Interferometric imaging system
CA 2003159 A1 · Owner: Dulman, Lev · Inventors: Dulman, Lev
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A quality control system provides for real-time high-speed, high-, resolution, comparison of the three-dimensional form of a sample with that of an exemplar. The quality inspection system includes a sample analyzer an exemplar analyzer, a comparator, a controller and a position memory. The sample analyzer includes a sample imager for providing an interferometric image of a sample of inspection, a sample scanner for scanning the sample image, and a sample transducer for converting the resulting sample scan into a sample signal representing the three-dimensional form of the sample. The exemplar analyzer similarly includes an exemplar imager an exemplar scanner, and an exemplar transducer to …
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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 November 16, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 16, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 16, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.