Metallic object with a thin polyphase oxide coating and process for the manufacture thereof
CA 2269684 C · Owner: Scharnweber, Dieter · Inventors: Stolzel, Martina; Scharnweber, Dieter; Worch, Hartmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a metallic object with a thin polyphase oxide coating and a process for the manufacture thereof. The oxide coating thus comprises a metallic oxide phase and at least another organic or inorganic constituent. The metallic object is made of valve metal such as aluminium titanium, tantalum, zircon, niobium or its alloy including metallic phases. Objects , with such an oxide coating exhibit in addition to advantageous chemical and physical properties, high biocompatibility and have multipurpose usage on account of their properties.
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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 23, 1997 and granted January 25, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 23, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 23, 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.