Motion display apparatus
CA 2094784 A1 · Owner: Seybold International Inc. · Inventors: Cuthbert, Jamie E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An illuminated display device having a front image with discreet highlights, back-lit by a series of moving alternating dark and light bands of diffused light creating the illusion of motion, is disclosed. A continuous light diffusing belt, having opaque lines separated by translucent bands, is mounted on a pair of spaced apart vertically aligned rollers, one of which is driven and, positioned between the image surface and a light source to create moving dark and light bands of diffused light.
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 April 23, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 23, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 23, 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.