Spacer for glass panel
CA 2299349 A1 · Owner: Asano, Osamu · Inventors: Horiguchi, Naoto; Okajima, Keiichiro; Asano, Osamu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Spacers of a glass panel (P) for keeping a clearance between opposed surfaces (2A, 2B) at a specified distance by providing the spacers between the opposed surfaces (2A, 2B) of both glass panes (1A 1B) in the glass panel (P) in which , a clearance part (3) is formed between the pair of glass panes (1A 1B) at a , specified distance and an outer peripheral closed part (4) is provided along the entire outer edge of both glass panes (1A 1B) so as to enclose the , clearance part (3) in a decompressed condition wherein the spacers each of , which is formed of two or more curved surfaces (6) are held between both glass panes (1A, 1B) in the state set under a stable position so as to maintain a …
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 June 3, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 3, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 3, 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.