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The patent EP3557971 was granted to Wessex Machinery on Feb 9, 2022. The application was filed on Dec 20, 2017 under application number EP17822742A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 |
|---|---|---|---|
| HUSTLER EQUIPMENT | Nov 8, 2022 | RIBEIRO | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | FR2561490 |
| INTERNATIONAL-SEARCH-REPORT | FR2759537 |
| INTERNATIONAL-SEARCH-REPORT | GB2048211 |
| INTERNATIONAL-SEARCH-REPORT | NZ286932 |
| INTERNATIONAL-SEARCH-REPORT | US4195958 |
| OPPOSITION | GB2048211 |
| OPPOSITION | NZ286932 |
| OPPOSITION | US4195958 |
| OTHER | FR2561490 |
| OTHER | GB2048211 |
| OTHER | NZ286932 |
| OTHER | US4195958 |
| OTHER | WO9403043 |
| SEARCH | FR2561490 |
| SEARCH | FR2759537 |
| SEARCH | GB2048211 |
| SEARCH | NZ286932 |
| SEARCH | US4195958 |
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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Communication of amended entries
Search/Exam
Dec 8, 2023
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Jan 13, 2022
Decision to grant a European patent
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Dec 17, 2021
Nov 29, 2021
Nov 24, 2021
Non-patent literature filed by a third party
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Nov 24, 2021
Non-patent literature filed by a third party
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Nov 24, 2021
Observations by third parties
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Nov 24, 2021
Observations by third parties
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Nov 24, 2021
Patent document filed by a Third party
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Nov 24, 2021
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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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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Nov 24, 2021
Patent document filed by a Third party
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Nov 24, 2021
Patent document filed by a Third party
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Nov 19, 2021
(Electronic) Receipt
Search/Exam
Nov 19, 2021
French translation of claims
Search/Exam
Nov 19, 2021
German translation of the claims
Search/Exam
Nov 19, 2021
Letter accompanying subsequently filed items
Search/Exam
Aug 13, 2021
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Intention to grant (signatures)
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Aug 13, 2021
Text intended for grant (clean copy)
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Aug 13, 2021
Jan 20, 2021
(Electronic) Receipt
Search/Exam
Jan 20, 2021
Amended claims with annotations
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Jan 20, 2021
Amended description with annotations
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Jan 20, 2021
Claims
Search/Exam
Jan 20, 2021
Description
Search/Exam
Jan 20, 2021
Letter accompanying subsequently filed items
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Jan 20, 2021
Sep 22, 2020
Annex to the communication
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Sep 22, 2020
Communication from the Examining Division
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Sep 16, 2020
Examination started
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Feb 4, 2020
(Electronic) Receipt
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Feb 4, 2020
Feb 4, 2020
Amended claims with annotations
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Feb 4, 2020
Feb 4, 2020
Amended description with annotations
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Feb 4, 2020
Feb 4, 2020
Amendments received before examination
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Feb 4, 2020
Letter accompanying subsequently filed items
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Jan 20, 2020
Document concerning representation
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Nov 22, 2019
Submission concerning representation
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Oct 2, 2019
Jul 30, 2019
Jul 26, 2019
Communication to designated inventor
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Jul 26, 2019
Communication to designated inventor
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Jul 26, 2019
Communication to designated inventor
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Jul 9, 2019
Jun 19, 2019
(Electronic) Receipt
Search/Exam
Jun 19, 2019
Request for entry into the European phase
Search/Exam
May 6, 2019
Information on entry into European phase
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Jul 17, 2018
Jun 28, 2018
Copy of the international search report
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Jun 28, 2018
Published international application - A1
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Mar 27, 2018
ISR: cited documents
PCTISA
Mar 23, 2018
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Jan 16, 2018
Jan 3, 2018
Abstract
PCTISA
Jan 3, 2018
Claims
PCTISA
Jan 3, 2018
Description
PCTISA
Jan 3, 2018
Drawings
PCTISA
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