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The patent EP3367956 was granted to Spartan Orthodontics on Jun 11, 2025. The application was filed on Oct 31, 2016 under application number EP16858552A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| HENRY SCHEIN | Oct 6, 2021 | DE ROOIJ | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | US3690003 |
| INTERNATIONAL-SEARCH-REPORT | US2011244414 |
| INTERNATIONAL-SEARCH-REPORT | US6976839 |
| OPPOSITION | CN203506898U |
| OPPOSITION | CN204133621U |
| OPPOSITION | EP1649824 |
| OPPOSITION | FR2979225 |
| OPPOSITION | US2009186314 |
| OPPOSITION | US2014335468 |
| OPPOSITION | US3690003 |
| OPPOSITION | US4255139 |
| OPPOSITION | US4525143 |
| OPPOSITION | US5967774 |
| OPPOSITION | US6655959 |
| OPPOSITION | US678452 |
| OPPOSITION | WO2013144283 |
| OTHER | US2011244414 |
| OTHER | US6976839 |
| OTHER | WO2013144283 |
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
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Decision to grant a European patent
Search/Exam
Nov 26, 2020
(Electronic) Receipt
Search/Exam
Nov 26, 2020
Filing of the translations of the claims
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Nov 26, 2020
French translation of claims
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Nov 26, 2020
German translation of the claims
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Jul 20, 2020
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Intention to grant (signatures)
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Jul 20, 2020
Text intended for grant (clean copy)
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(Electronic) Receipt
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Mar 31, 2020
Amended claims with annotations
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Mar 31, 2020
Claims
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Mar 31, 2020
Description
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Mar 31, 2020
Letter accompanying subsequently filed items
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Annex to the communication
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Dec 3, 2019
Communication from the Examining Division
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Nov 26, 2019
Examination started
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Maintenance of the application
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European search opinion
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Information on Search Strategy
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Supplementary European search report
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Mar 29, 2019
Search started
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Nov 30, 2018
(Electronic) Receipt
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Amendments received before examination
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Nov 30, 2018
Letter accompanying subsequently filed items
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(Electronic) Receipt
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Letter accompanying subsequently filed items
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Non-patent literature filed by a third party
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Non-patent literature filed by a third party
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Observations by third parties
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Patent document filed by a Third party
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Patent document filed by a Third party
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Patent document filed by a Third party
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Communication to designated inventor
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May 29, 2018
(Electronic) Receipt
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May 29, 2018
Request for entry into the European phase
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Notification of the recording of a change
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Mar 9, 2018
Information on entry into European phase
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May 23, 2017
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Copy of the international search report
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May 4, 2017
Published international application - A1
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