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Expired Canadian patentCanada

Current supply member support for high-pressure discharge lamp

CA 1161098 A · Owner: N.V. Philips Gloeilampenfabrieken · Inventors: Jacobs, Cornelis A.J.; Van De Weijer, Martinus H.A.; Fitzgerald, John

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Abstract From the Canadian patent

PHN . 9838 13, ABSTRACT:, The invention relates to a high-pressure discharge lamp having a ceramic discharge vessel comprising an ionizable filling which in the operating condition of the lamp comprises a component present in excess and in, which two electrodes are present. The electrode is connected to a pin-shaped current supply member which is surrounded with a small gap by an end portion of the discharge vessel. According to the invention the pin-shaped current supply member and the end portion are connected in a gas-tight manner by means of a glass seal in which the, sealing glass seal extends into the small gap in the direction towards the electrode over such a distance that in the …

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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 January 24, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 24, 2001.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 3, 1981
GrantedJanuary 24, 1984
Term endedJanuary 24, 2001
Patent numberCA 1161098 A
Classification (IPC)H01J61/36 +1 more

Timeline

Timeline From CIPO dates

1982198419861988199019921994199619982000Application filedSep 3, 1981Patent grantedJan 24, 1984Term endedJan 24, 2001

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.