Device for adjusting the angle of a sighting unit to a target
CA 2523552 C · Owner: Haele, Anton · Inventors: Haele, Anton
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a device for adjusting the angle of a sighting unit (1) towards a target, in particular for a geodesic-measuring instrument. The inventive device comprises a reference base (2) at least one bearing (3) for , mounting the sighting unit (1) thereon in such a way that it is pivotable with respect to said reference base (2) around an axis (4) a gear for accurately , adjusting an angle of rotation around said axis (4) between the sighting unit (1) and the reference base (2) and a coupling unit for limiting or interrupting a torque flux around the axis (4). The gear and the coupling unit are in series arranged in the torque flux between the sighting unit (1) and …
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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 April 27, 2004 and granted February 5, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 27, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 27, 2026.
- 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.