Intelligent lamp or intelligent contact terminal for a lamp
CA 2122989 C · Owner: Korkala, Heikki · Inventors: Korkala, Heikki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an intelligent lamp or an intelligent contact terminal for a lamp, which can be used in a lighting system comprising a plurality of individually controlled lamps (1; 5) links in a common power-supply circuit (8, 9) and an operation control device for transmitting a desired operation control signal to electronic control elements (11, 12, 13) associated, with the lamp or the contact terminal and reading or failing to react selectively to various control signals. Together with the lamp or its contact terminal, said electronic control elements (11 12, 13) provide , a single replaceable component which on the basis of, a message included in the operation control …
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 10, 1992 and granted March 26, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 10, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 10, 2014.
- 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.