High emittance glass coating material, high emittance glass coating, and method of producing high emittance
CA 2257798 A1 · Owner: Horimi, Kazuhiro · Inventors: Matsunaga, Hirokazu; Kato, Shinji; Kato, Yoshitsugu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A glass paste containing pigment particles of silicon tetraboride each covered with a silica glass film (silica glass layer) having a silicon dioxide content higher than that of the glass structure present at the interface with the pigment particle and a predetermined thickness. In the glass film formed by applying this glass paste to the surface of a substrate and firing it a , silica glass film (silica glass layer) which is relatively lowered in the reactivity with the pigment particle by virtue of its silicon dioxide content higher than that of the glass structure is formed at the interface between each pigment particle and the glass structure. The use of the glass paste …
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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 April 9, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 9, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 9, 2020.
- 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.