Trifocal mirror-reflector
CA 1075656 A · Owner: Luderitz, Willy · Inventors: Luderitz, Willy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A compound reflector having a cross section in the form of a trifocal reflector is disclosed. The cross section of the compound reflector comprises a first reflector section formed along an arc of a first ellipse and a second reflector section formed along an arc of a second ellipse. Both ellipses share a common focal point which may be either the proximal or distal focal points of each reflector section.
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
- Granted April 15, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 15, 1997.
- 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.