Canadian application, no grantCanada
Fabricated resin products for laser welding and including transmitting and absorbing black colorants, and colored resin compositions therefor
CA 2423779 A1 · Owner: Koshida, Reiko · Inventors: Hayashi, Ryuichi; Koshida, Reiko; Hatase, Yoshiteru
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel fabricated resin products are described and having suitability for laser welding applications. These contain a resin part for transmitting black colorant (9) and a resin part for absorbing black colorant (10).
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 November 13, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 13, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 2023.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 13, 2001
GrantedNo grant recorded
Term endedNovember 13, 2021
Patent numberCA 2423779 A1
Classification (IPC)C08K3/04 +2 more
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.