Fabrication of a liquid-film display cell
CA 1110351 A · Owner: Commissariat A L'Energie Atomique · Inventors: Duchene, Jacques; Destannes, Louis; Meyer, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The method consists in forming a first insulating plate coated with an electrode, in depositing at the periphery of the plate a wall formed of a first material which is chemically inert with respect to the film and fusible at a first temperature, in passing through the wall a filler tube of a second material having a higher melting point than the wall, in forming a second transparent insulating plate coated with a semitransparent electrode in sealing the, tube in the wall and the first and second plates on the wall by heating the cell elements to a temperature at least equal to the first temperature and lower than the melting point of the second material, then in allowing the cell elements …
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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
- Granted October 6, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 6, 1998.
- 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.