Vertical transition device for differential stripline paths and optical module
CA 2351975 C · Owner: Aruga, Hiroshi · Inventors: Aruga, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vertical transition device for differential stripline paths connects differential microstrip paths on a horizontal plane with differential triplate paths on another horizontal plane in a multilayered architecture. The differential microstrip paths include a pair of differential microstrip lines. The differential triplate paths include a pair of triplate lines. The differential microstrip lines are connected with the differential triplate lines by via-holes within the transition device respectively.
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 June 26, 2001 and granted December 2, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 26, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 26, 2023.
- 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.