Compact multiscreen video projection system
CA 2091006 A1 · Owner: Ikoma, Jyunichi · Inventors: Ikoma, Jyunichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multiscreen video system incorporates upper and lower rows of rear-projection type screens and employs reflection-projection systems for the upper and lower rows. Overall depth of the multiscreen system is significantly reduced, thus greatly increasing installation options. Cost may also be reduced significantly as compared to modular direct-projection type multiscreen systems by providing in integrated multiscreen system.
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 March 4, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 4, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 4, 2015.
- 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.