Transparent laminate having low emissivity
CA 2424746 C · Owner: Murata, Kenji · Inventors: Nakai, Hidemi; Murata, Kenji; Doshita, Kazuhiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
When a ZnO layer is formed as a dielectric layer on an amorphous layer, a columnar crystal structure of ZnO is put into disorder whereby not only the amorphous layer but also the dielectric layer function as a barrier for preventing the invasion of moisture and gas from outside whereupon durability of a metal layer (Ag) is improved.
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 September 28, 2001 and granted March 29, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 28, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 28, 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.
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.