Canadian application, no grantCanada
Networks of optical systems
CA 2305073 A1 · Owner: Hatami-Hanza, Hamid · Inventors: Hatami-Hanza, Hamid
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An optical network having a number of optical amplifiers utilize the internet protocol (IP) to control the amplifiers via the internet where optical amplifiers are assigned unique internet addresses as required.
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 13, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 13, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 13, 2022.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 13, 2000
GrantedNo grant recorded
Term endedApril 13, 2020
Patent numberCA 2305073 A1
Classification (IPC)H04B10/29 +2 more
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.