Manufacturing methods and systems for rapid production of hearing-aid shells
CA 2685458 C · Owner: Phonak Ag · Inventors: Edelsbrunner, Herbert; Fu, Ping; Nekhayev, Dmitry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of manufacturing an in-the-ear shell comprising the steps of: automatically generating a first three-dimensional digital model of a surface that describes a shape of an ear canal of a subject as a 2-manifold surface having zero or nonzero functional boundary from captured three-dimensional data; generating a second three-dimensional digital model of a thickened in-the-ear shell from the first three-dimensional digital model; printing the second three-dimensional digital model as an in-the-ear shell; and performing quality assurance by comparing at least two of the first three-dimensional digital model the second three-dimensional digital model and a third three-dimensional digital …
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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
- Filed October 5, 2001 and granted August 11, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 5, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 5, 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
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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.