Device for detecting polarization mode dispersions
CA 2340710 A1 · Owner: Wollenweber, Johannes · Inventors: Wollenweber, Johannes; Stelzl, Rudolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
According to this invention and after the occurrence of an error the link , data redundantly saved elsewhere are used for maintaining the communication link. The present invention also relates to a switching device (EXC) having a central unit (MP) that comprises a data memory for storing the communicationlink data which is signaled and switched by the allocated peripheral structural components (LIC1, LIC2)._________________________________________________________________________ _______________________________________________________________________________ _______________________
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 August 17, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 17, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 17, 2021.
- 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.