Patent Yard Sign in
Expired Canadian patentCanada

Device provided with an evacuated bulb comprising a getter and a getter auxiliary means

CA 1205122 A · Owner: N.V. Philips Gloeilampenfabrieken · Inventors: Kroontje, Wiggert

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

12, ABSTRACT:, Device provided with an evacuated bulb comprising a getter and a getter auxiliary means. In devices provided with an evacuated bulb in which is present an activated metallic getter hydro-, carbons can be released or produced. As a result the gas, pressure and the heat conductivity increase. In devices according to the invention, for example low-pressure, sodium vapour discharge lamps solar collectors, display, tubes and image intensifiers a getter auxiliary means is, provided. The auxiliary means comprises an inorganic porous carrier charged with a transition metal having an atomic number from the series 23 to 29, 41 to 47 and 73 to 79 in, elementary form or in oxide form, or …

Read the whole patent

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 May 27, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 27, 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.
FiledApril 20, 1983
GrantedMay 27, 1986
Term endedMay 27, 2003
Patent numberCA 1205122 A
Classification (IPC)H01J61/26 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedApril 20, 1983Patent grantedMay 27, 1986Term endedMay 27, 2003

Sources & verification

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