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Expired Canadian patentCanada

Method of manufacturing a deflection unit for a colour television display tube, a deflection unit manufactured according to this method and a colour display tube having such a deflection unit

CA 1163311 A · Owner: Koninklijke Philips Electronics N.V. · Inventors: Kuiper, Albert J.

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Abstract From the Canadian patent

10-4-1979 1 PHN 9180, ABSTRACT:, "Method of manufacturing a deflection unit for a colour television display tube, a deflection unit manufactured according to this method and a colour display tube 'having such a deflection unit". A deflection unit for a colour television display tube comprising line and frame deflection coils and a magnet core cooperating with said coilscan be manufactured by placing the deflection coils and the magnet core around the part of the transition neck-cone of` a colour display tube in such manner that the deflection coils engage or substantially engage the tube, which display tube comprises an adjusted colour purity magnet, after which the tube is adjusted so as …

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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 6, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 6, 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.
FiledJune 21, 1979
GrantedMarch 6, 1984
Term endedMarch 6, 2001
Patent numberCA 1163311 A
Classification (IPC)H01J9/23 +2 more

Timeline

Timeline From CIPO dates

19801983198619891992199519982001Application filedJune 21, 1979Patent grantedMarch 6, 1984Term endedMarch 6, 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.