Hermetically sealed enclosure for thin film devices
CA 1238123 A · Owner: Gte Products Corporation · Inventors: Schrank, Martin P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hermetically sealed enclosure for a thin film device such as an electroluminescent device, in which the device includes a thin film matrix supported on a glass substrate. The glass substrate is mounted in a frame and a frit seal is provided between the glass substrate and the frame. A cover is also secured and sealed to the frame by a weld or solder joint. The integrity of both the substrate to frame seal and the frame to cover seal is preserved by forming the surfaces bounding each seal out of materials having substantially similar coefficients of thermal expansion. Since the rates of expansion will be similar, the seals should not develop weaknesses throughout the life of the device …
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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 June 14, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 14, 2005.
- 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.