A set of fancy lamp bulb and socket adapter
CA 2323336 A1 · Owner: Chang, Chu-Cheng · Inventors: Chang, Zheng-Dao; Chang, Chu-Cheng; Chang, Zheng-Xian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a set of fancy-lamp bulb and socket adapter, and more particularly to a set of fancy-lamp bulb and socket adapter without conventional fixed sleeve which takes the advantages of, touching surfaces of the sealing lug at the bottom of the bulb top surface, and the sealing socket and the bottom surface of the sealing socket of the socket adapter, the lapping surfaces appear into horizontal and vertical three dimensions change to form a solid sealing structure to prevent water from permeating into the inside of the socket adapter; and by clamping the terminal portion of the bulb with the clamping portion of the conducting strips, the connection between the …
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 October 16, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 16, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 2022.
- 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.