Patent No. EP3638592 (titled "Container Bottom Base Provided With A Bi-Concave Arch") was filed by Nestle on Jun 7, 2018. The application was issued on May 24, 2023.

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 |
|---|---|---|
| SIDEL PARTICIPATIONS | Feb 26, 2024 | SIDEL GROUP |
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
Get instant alerts for new documents
Jan 29, 2026
Jan 29, 2026
Jan 29, 2026
Jan 22, 2026
Jan 19, 2026
Jan 19, 2026
Jan 13, 2026
Jan 13, 2026
Jan 13, 2026
Jan 13, 2026
Jan 13, 2026
Jan 13, 2026
Jan 13, 2026
Jan 13, 2026
Jan 13, 2026
Jan 13, 2026
Jan 13, 2026
Jan 13, 2026
Jan 9, 2026
Nov 25, 2025
Nov 20, 2025
Nov 20, 2025
Nov 20, 2025
Oct 22, 2025
Oct 21, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 14, 2025
Oct 14, 2025
Oct 9, 2025
Oct 9, 2025
Oct 9, 2025
Feb 21, 2025
Feb 21, 2025
Feb 21, 2025
Feb 21, 2025
Jul 18, 2024
Jul 15, 2024
Jul 15, 2024
Jul 15, 2024
May 10, 2024
May 3, 2024
May 3, 2024
May 3, 2024
May 3, 2024
Mar 13, 2024
Mar 13, 2024
Mar 13, 2024
Mar 1, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Jun 6, 2023
Jun 1, 2023
Apr 28, 2023
Apr 5, 2023
Apr 5, 2023
Apr 5, 2023
Apr 5, 2023
Apr 5, 2023
Dec 19, 2022
Dec 19, 2022
Dec 19, 2022
Dec 19, 2022
Dec 19, 2022
Dec 19, 2022
Mar 14, 2022
Oct 18, 2021
Oct 18, 2021
Oct 18, 2021
Oct 18, 2021
Oct 18, 2021
Jun 25, 2021
Jun 25, 2021
Jun 21, 2021
Jul 13, 2020
Jul 13, 2020
Jul 13, 2020
Jul 13, 2020
Jul 13, 2020
Jul 13, 2020
Jul 13, 2020
Mar 25, 2020
Feb 6, 2020
Jan 30, 2020
Jan 20, 2020
Jan 20, 2020
Jan 3, 2020
Dec 13, 2019
Dec 13, 2019
Oct 25, 2019
Jun 19, 2019
Jun 19, 2019
Jun 19, 2019
Jun 19, 2019
Jan 11, 2019
Dec 20, 2018
Dec 20, 2018
Aug 7, 2018
Aug 3, 2018
Aug 3, 2018
Aug 3, 2018
Jun 15, 2018
Jun 14, 2018
Jun 11, 2018
Jun 7, 2018
Jun 7, 2018
Jun 7, 2018
Jun 7, 2018
Jun 7, 2018
Jun 7, 2018
Jun 7, 2018
Jun 7, 2018