Dual cathode beam mode fluorescent lamp with capacitive ballast
CA 1264063 C · Owner: Gte Laboratories Incorporated · Inventors: Roche, William J.; Proud, Joseph M.; Budinger, A. Bowman
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improvement in dual beam mode fluorescent lamps in which a capacitive ballast is provided integral with the lamp structure in the form of a clyindrical laminate of metal and insulator coaxial to the lamp's major axis.
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 December 27, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 27, 2006.
- 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.