Colour selection mask with cutouts in flange
CA 1070367 A · Owner: Licentia Patent-Verwaltungs-Gmbh · Inventors: Tust, Heinz; Roder, Dieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a rectangular aperture mask unit for a color television picture tube composed of a thin metal sheet presenting a mask region of generally rectangular form and a peripheral flange surrounding the mask region and extending at an angle thereto and a metal frame enclosed by the flange in a telescoping manner and fastened thereto by a plurality of spot welds distributed around the periphery of the flange the flange is, provided, at each corner of the unit with two spaced cutouts, extending from the edge of the flange remote from the mask region and defining a tongue which is curved in the direction of the periphery of the flange, the length of the cutouts being equal to at least one-half the …
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, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 22, 1997.
- 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.