Headlight lantern system and electric lamp for this system
CA 1292501 C · Owner: N.V. Philips' Gloeilampenfabrieken · Inventors: T'Jampens, Germain Remi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Headlight lantern system and electric lamp for use therein. The headlight lantern system comprises lanterns (1a) with a rectangular pane (10) having a height of less than 60 mm and a flattened concave reflector (11) in which a, filament (20) is arranged in a narrow tubular envelope. The filament (20) has a very high colour temperature and is surrounded by gas of very high pressure. The system produces a light beam which is superior to the beam of conventional headlight lanterns of considerably larger dimensions.
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 November 26, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 26, 2008.
- 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.