Christmas lamp socket
CA 2193797 C · Owner: Huang, Shun-Feng · Inventors: Huang, Shun-Feng
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A Christmas lamp socket includes a housing and an inner body inserted vertically in the housing and a, lamp inserted vertically in the inner body. The housing has two opposite vertical ridges in an inner peripheral surface and two opposite vertical tubular hooks on an outer peripheral surface. The hooks respectively have a vertical slot and two electric leads of power are contained and hooked in the hooks with proper tightness preventing the leads from dispersing or twisting with each other when the sockets are organized into a Christmas lamp net.
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 December 23, 1996 and granted March 14, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 23, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 23, 2018.
- 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.