Solid modelling
CA 1303223 C · Owner: International Business Machines Corporation · Inventors: Todd, Stephen James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An object definition generator generates a solid representation of an object for a solid modelling system in terms of the symmetric difference of construction solids based on respective surface areas of the object and defined with respect to a common datum in object space. The solid representation of a construction solid for a surface area can be formed in terms of the logical intersection of solid primitives based on the surface area itself and on one or more construction surfaces defined with respect to the boundary of the surface area and the common datum in space. The datum could be a point or a direction in object space. The invention allows for the automatic generation of a solid …
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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
- Granted June 9, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 2009.
- 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.