Color picture tube having a tensioned mask and compliant support frame assembly
CA 2189802 C · Owner: Thomson Consumer Electronics, Inc. · Inventors: Ragland, Frank Rowland, Jr.; Bauder, Richard Clark; Nosker, Richard William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides an improvement in a color picture tube having a tensioned mask and support frame assembly. Each of the mask and the support frame is rectangular and has two long sides that parallel a central major axis thereof and two short sides that parallel a central minor axis thereof. The mask has a substantially cylindrical contour being curved along, the major axis and straight along the minor axis. The improvement comprises the frame including two first members that parallel the major axis and two second members attached to, the ends of the first members that parallel the minor axis. Each, of the first members includes a rigid section and a compliant section …
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
- Filed November 7, 1996 and granted July 16, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 7, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 7, 2018.
- 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.