Incandescent lamp for motor vehicle headlights
CA 2424677 A1 · Owner: Buhler, Manfred · Inventors: Behr, Gerhard; Wittmann, Klaus; Seichter, Christian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an incandescent lamp for a motor vehicle headlight. The secondary filament (2) is arranged in such a way that, in a projection plane that is arranged perpendicular to the reference plane (B) the edge (2a), facing the antidazzle device (4) of the, image, projected onto the projection plane of the, second incandescent filament (2) is arranged over the entire length of the second incandescent filament (2) between the reference axis (A) and the antidazzle device (4), and the edge (2a), facing the antidazzle device (4), of the image, projected to the scale 1:1. onto the projection plane of the second incandescent, filament (2) has a prescribed spacing from the reference …
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 April 7, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 7, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 7, 2025.
- 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.