Lamp assembly with a casing having a mild light-transmission effect
CA 2287420 A1 · Owner: Yang, Jerry S.C. · Inventors: Yang, Jerry S.C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Lamp Assembly with a casing having a mild light transmission effect, comprising essentially: the lamp casing and the lamp shade of any shape or makeup, the lamp casing configured involute to accommodate said lamp shade both casing and shade, may be structured independently comprising a single constituent or alternatively multiple constituents but these, restricted to be materials of chosen light transmittances in, module form, and vested with atomization effect or still, the, surface of said casing may be subjected to sandblasting treatment, or still, to the chosen light permeating materials additives to differing proportions may be added or still, painting finish may he applied to said …
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 21, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 21, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 21, 2021.
- 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.