Colour display tube
CA 1181462 A · Owner: N.V. Philips Gloeilampenfabrieken · Inventors: Van Der Geer, Josephus J.; Van Liempd, Albertus A.M.; Van Der Avoort, Henricus J.M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
13, ABSTRACT:, A colour selection electrode is suspended in the corners of the upright edge of the display window by means of strip shaped resilient elements which extend substantially perpendicularly to the electron beams deflected towards the relevant corner or the display window. The resilient elements, at their ends remote from the colour selection electrode, comprise a peg the axis of which extends substantially parallel to the direction of the eleatron beams directed toward the relevant corner In, the corner of the upright edge of the display window a supporting element is connected which comprises a portion which is provided with an apertures which portion extends substantially …
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 January 22, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 22, 2002.
- 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.