Device for transmitting optical signals
CA 2092167 A1 · Owner: Kabelmetal Electro Gmbh · Inventors: Stieb, Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for transmitting optical signals is disclosed, in which glass fibers are placed between a relay station and several subscribers, in line with a passive distributor (V) equipped with a coupler. At least one glass fiber (1, 2) connects the distributor (V) to the relay station and each subscriber to the distributor (V). 'n' couplers (K) are located in cascade formation in the distributor (V), each of which has one inlet and at least two outlets, and are connected to each other in such a way that, starting with the glass fiber (1) coming from the relay station, another coupler (K) is connected in each stage of the cascade formation by its inlet to each outlet of a coupler (K). Couplers …
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 22, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 22, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 22, 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.