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The patent EP3639716 was granted to Black & Decker on Sep 3, 2025. The application was filed on Oct 12, 2011 under application number EP19214181A. 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 |
|---|---|---|---|
| DYSON TECHNOLOGY | Aug 3, 2022 | DYSON DEPARTMENT | ADMISSIBLE |
| DYSON TECHNOLOGY | Aug 3, 2022 | KENT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0042723 |
| DESCRIPTION | EP1752076 |
| DESCRIPTION | GB2440110 |
| OPPOSITION | CN101060270 |
| OPPOSITION | CN1654004 |
| OPPOSITION | CN201307782Y |
| OPPOSITION | CN201755193U |
| OPPOSITION | GB2467964 |
| OPPOSITION | GB2468299 |
| OPPOSITION | GB2475313 |
| OPPOSITION | US2007033765 |
| OPPOSITION | US2008196196 |
| OPPOSITION | US2010251507 |
| SEARCH | WO2006076363 |
| SEARCH | WO2010102400 |
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.
Date
Description
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Aug 7, 2025
Aug 7, 2025
Jul 30, 2025
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Refund of fees
Appeal
Jun 16, 2025
Refund of fees
Appeal
Jun 12, 2025
Jun 12, 2025
Jun 6, 2025
(Electronic) Receipt
Appeal
Jun 6, 2025
(Electronic) Receipt
Appeal
Jun 6, 2025
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Withdrawal of an appeal
Appeal
Jun 6, 2025
Withdrawal of an appeal
Appeal
May 13, 2025
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May 9, 2025
May 6, 2025
(Electronic) Receipt
Appeal
May 6, 2025
(Electronic) Receipt
Appeal
May 6, 2025
Authorisation
Appeal
May 6, 2025
May 6, 2025
Notice of appeal
Appeal
May 6, 2025
Notice of appeal
Appeal
May 6, 2025
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Means of redress
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Nov 16, 2021
Oct 7, 2021
Decision to grant a European patent
Search/Exam
Sep 9, 2021
(Electronic) Receipt
Search/Exam
Sep 9, 2021
Filing of the translations of the claims
Search/Exam
Sep 9, 2021
French translation of claims
Search/Exam
Sep 9, 2021
German translation of the claims
Search/Exam
Sep 9, 2021
Letter accompanying subsequently filed items
Search/Exam
Jul 21, 2021
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Intention to grant (signatures)
Search/Exam
Jul 21, 2021
Text intended for grant (clean copy)
Search/Exam
Jul 21, 2021
May 18, 2021
Examination started
Search/Exam
Oct 19, 2020
(Electronic) Receipt
Search/Exam
Oct 19, 2020
Oct 19, 2020
Amended claims with annotations
Search/Exam
Oct 19, 2020
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Amended description with annotations
Search/Exam
Oct 19, 2020
Amendments received before examination
Search/Exam
Oct 19, 2020
Letter accompanying subsequently filed items
Search/Exam
Apr 28, 2020
Mar 25, 2020
Notification of forthcoming publication
Search/Exam
Mar 3, 2020
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European search opinion
Search/Exam
Mar 3, 2020
European search report
Search/Exam
Mar 3, 2020
Information on Search Strategy
Search/Exam
Feb 25, 2020
Modified abstract
Search/Exam
Feb 18, 2020
Search started
Search/Exam
Jan 29, 2020
Communication to designated inventor
Search/Exam
Jan 22, 2020
Refund of fees
Search/Exam
Dec 27, 2019
Payment submission rejected
Search/Exam
Dec 6, 2019
Abstract
Search/Exam
Dec 6, 2019
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Claims
Search/Exam
Dec 6, 2019
Description
Search/Exam
Dec 6, 2019
Designation of inventor
Search/Exam
Dec 6, 2019
Drawings
Search/Exam
Dec 6, 2019
Letter concerning search matters
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Dec 6, 2019
Request for grant of a European patent
Search/Exam