Method for determining the orientation of an orientation indicator
CA 2587976 C · Owner: Kirschner, Holger · Inventors: Kirschner, Holger
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
According to the invention, a separation from at least one and an image of at least three , reflective regions on the orientation indicator are recorded by a separation measurement , sensor and an image sensor in a measuring device for the purpose of , determining the , orientation of an orientation indicator. The separation measurement and image recording , are achieved by means of a directed emission of a collimated first beam and a divergent , second beam with differing wavelengths and/or polarisation in the direction of the , orientation indicator and a simultaneous recording of the reflected and/or scattered first , and second beams. The reflective regions on the orientation …
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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 4, 2005 and granted March 29, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 4, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.