Low pressure discharge lamp assembly
CA 2095468 A1 · Owner: Goldman, Dennis · Inventors: Goldman, Dennis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a low pressure mercury vapour discharge lamp assembly. The assembly comprises an elongate wedge-shaped control circuit arranged to be plugged into a base. A pair of splayed discharge tubes extend from the base and flank the control circuit housing. The base terminates in a conventional screw or bayonet-type fitting. The invention extends to a control circuit housing arranged to house both ballast and starter circuitry. The overall length of the assembly is reduced by virtue of the control circuit housing being positioned alongside the discharge tube. The compact nature of the discharge assembly makes it suited as a replacement for conventional incandescent light …
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 May 4, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 4, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 4, 2015.
- 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.