Circuit design system, image processing method and medium of the circuit design system
CA 2216775 C · Owner: Jinguji, Kaname · Inventors: Katoh, Katsumi; Jinguji, Kaname
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention enables waveguides to be simply laid out wherein the correlationship between a curvilinear graphic connecting two points together and the positions of these two points is specified beforehand and stored in a RAM in the form of rule of virtual path generation when, a mouse is used to specify the connection terminals of two blocks on a display screen, a CPU receives an instruction for generation of virtual paths and the CPU then references the rule of virtual path generation to automatically generate a virtual path connecting the connection terminals of the two blocks and to draw it on the display screen.
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 September 29, 1997 and granted December 24, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 29, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 29, 2019.
- 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.