Double reflector
CA 2075822 A1 · Owner: Hugenell, Hermann · Inventors: Hugenell, Hermann
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PCT/CH91/00260, Abstract of the Disclosure A double reflector is described which comprises two spaced apart primary mirrors oriented toward a common focus. The optical system further comprises two separate secondary deflector mirrors as well as tertiary deflector mirrors for beam concentration on a common focus. Both the primary mirrors and the secondary deflector mirrors are so-called off-axis reflectors, i.e. their surface represent surface sectors of a hypothetical big aspherical mirror body each. As surface sectors of a hypothetical big hyperbolic mirror the primary mirrors, are inclined at an angle with respect to the common optical axis and each disposed at a given spacing from the …
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 10, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 10, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 10, 2013.
- 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.