Mirror telescope
CA 2032001 C · Owner: Carl-Zeiss-Stiftung, A Foundation Established Under The Laws Of Germany · Inventors: Schubert, Hermann; Juranek, Hans-Joachim
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 mirror telescope for use in inaccessible assemblies such as in satellites. The primary mirror and the secondary mirror are made of the same material as are all components which fix and influence the distance. In this way a mirror telescope is provided which maintains its optical characteristics without readjustment over a long period of time.
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 11, 1990 and granted March 20, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 11, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 11, 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.