Electron tube and method of manufacturing said electron tube
CA 1201757 A · Owner: N.V. Philips Gloeilampenfabrieken · Inventors: Vrijssen, Gerardus A.H.M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
9-, ABSTRACT:, "Electron tube and method of manufacturing said electron tube". In an electron tube comprising a window (2,12) having a radiation-sensitive layer (3,13) the window is, laid on a bearing surface (4,14) normal to the tube axis without the interposition of sealing material while, forming a seam. The seam is sealed hermetically by means of a mass (9,19) of indium or an indium alloy in which a wire (10,20) of a metal which is circumferential along the seam and which can be soldered with indium or an indium alloy is embedded. The seal is realized by locally melting the indium or the indium alloy by means of a heated ultrasonically vibrating heat transfer member (17) the, heat …
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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 March 11, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 11, 2003.
- 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
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.