Process and installatin for the identification of materials
CA 2109669 A1 · Owner: Laser Zentrum Hannover E.V · Inventors: Engel, Kai; Burmester, Ingo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Summary, Process and Installation for the Identification of Materials This invention consists of a process and an installation to identify materials. Materials are exposed to laser energy, and after the material is heated the thermal radiation of the material is measured. Following this a material-specific evaluation takes place based on optical and thermal material, properties. At least one area on the surface of the material to be identified is subject to a short point-shaped exposure of laser radiation. The material-specific thermal impulse response for the radiated surface area of the material is both locally and temporally measured and evaluated as, regarding the kind of material.
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 November 22, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 22, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 22, 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.