Decorative display apparatus
CA 1261040 A · Owner: Nippon Seiki Corporation Limited · Inventors: Yokoyama, Meiso; Ohkawa, Hiroshi; Takahashi, Makoto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A luminous decorative display apparatus e.g. for, a Christmas tree, has a plurality of two-sided flat luminous display elements each having an electroluminescent layer formed contiguously between opposite transparent electrodes and capable of shining in a specific color and shape when a voltage is applied across the transparent electrodes. Each display element is connected through electrode terminals extending from the respective transparent electrodes for parallel connection to power supply lines.
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 September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
- 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.