Glass panel and method of manufacturing thereof and spacers used for glass panel
CA 2292523 A1 · Owner: Nippon Sheet Glass Co. Ltd. · Inventors: Yoshizawa, Hideo; Miura, Tomonori; Okajima, Keiichiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A glass panel and a method of manufacturing the glass panel and spacers used for the glass panel, wherein a plurality of spacers (3) are provided between the first opposing surface (2A) of a first flat glass (1A) and the second opposing surface (2B) of a second flat glass (1B) to form a space part (C) between the first and second opposing surfaces (2A 2B) and a sealant (6) is , disposed on the peripheral edge parts (1a) of the first flat glass (1A) and the second flat glass (1B) to keep the space part (C) airtight a plurality of , spacers (3) each having a contact portion (5) in contact with the first opposing surface (2A) at one edge side thereof being disposed on the second …
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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 30, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 30, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 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.