Color projector apparatus of single cathode ray tube type
CA 1204141 A · Owner: Sony Corporation · Inventors: Toyama, Takashi; Ohkoshi, Akio; Watanabe, Toshiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A color projector apparatus including a single cathode ray tube of index-type having a first transparent panel with phosphor elements of three primary colors and an indexing element formed on the inner surface thereof a second transparent panel located in front of the first transparent panel of cathode ray tube, a metal frame-shape spacer for supporting the second transparent panel and a, transparent liquid coolant filled into the space between the first and second transparent panels.
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 May 6, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 6, 2003.
- 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.