Color cathode ray tube having an improved shadow mask suspension system
CA 1049083 A · Owner: Zenith Radio Corporation · Inventors: Dougherty, Lawrence W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This application depicts a rectangular color cathode ray tube having a faceplate and a mating funnel on the face-, plate of which is a system of four suspension devices one at, each corner of the faceplate, for detachably supporting a nonself-rigid shadow mask adjacent a screen-bearing inner surface of the faceplate. At least three of the mask suspension devices each comprise detachably engageable mask-mounted and envelopeassociated components. One of the components includes an axially extending leaf spring. The mask-mounted component includes a novel metal bracket affixed to a corner of the mask. The bracket provides a precisely located and rigidly held surface for supporting the spring, …
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 February 20, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 20, 1996.
- 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.