Patent details
EP3486248 Title: IMPROVED METHODS FOR THE ACYLATION OF MAYTANSINOL
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Basic Information
- Publication number:
- EP3486248
- WO Application Number:
- Type:
- European Patent Granted for NL
- Status:
- Patent in Force
- Publication Title:
- Title When Made Available For Viewing:
- Reason Lapsed:
- Application number:
- EP18213678.8
- WO Publication Number:
- EPO Publication Language:
- English
- SPC Number:
- First Applicant Residence Country:
- United States of America (US)
- Publications:
Dates
- Filing date:
- 26/09/2013
- Grant date:
- 07/04/2021
- EP Publication Date:
- 22/05/2019
- WO Publication Date:
- Claims Translations Received Date:
- Claims Translation B1 Received Date:
- 02/07/2021
- Claims Translation B2 Received Date:
- Claims Translation B3 Received Date:
- Lapsed By Non Payment Annual Fee Date:
- Renunciation Date:
- NullificationDate:
- Published:
- Due To Cession Date:
- Registration date:
- 07/04/2021
- EP B1 Publication Date:
- 07/04/2021
- EP B2 Publication Date:
- EP B3 Publication Date:
- Description Translation B1 Received Date:
- Description Translation B2 Received Date:
- Description Translation B3 Received Date:
- Expiration date:
- 25/09/2033
- Lapsed By Expiration Date:
- Patent Validated Date:
- 14/07/2021
- Revocation Date:
- Invalidity Date:
- Response To Novelty Search Report Received:
- Patent Granting Request:
- Lapsed date:
Applicant/holder
- From:
- 07/04/2021
- Name:
- ImmunoGen, Inc.
- Address:
- 830 Winter Street, 02451, WALTHAM, MA , United States of America (US)
Agent
1
- Name:
- ir. B.Ch. Ledeboer c.s
- From:
- 29/07/2025
- Address:
- V.O. Postbus 87930, 2508 DH, Den Haag, Netherlands (NL)
- To:
2
- Name:
- ir. H.A. Witmans c.s.
- From:
- 13/07/2021
- Address:
- V.O. Postbus 87930, 2508 DH, Den Haag, Netherlands (NL)
- To:
- 29/07/2025
Inventor
1
- Name:
- Widdison, Wayne C
- Address:
- Belmont, MA 02478, United States of America (US)
2
- Name:
- Zhao, Robert Yongxin
- Address:
- Lexington, MA 02421, United States of America (US)
Priority
- Priority Patent Number:
- 201261705731 P
- Priority Date:
- 26/09/2012
- Priority Country:
- United States of America (US)
Classification
- IPC or IDT classification:
- A61P 35/00; C07D 498/16; C07D 498/18;
Publication
Bulletin
1
- Bulletin Heading:
- EP3
- Journal edition number:
- 28/21
- Publication date:
- 14/07/2021
- Description:
- European patents granted for the Netherlands in which a translation was filed ex Article 52 par. 1 of the NL Patent Law 1995
2
- Bulletin Heading:
- EP2
- Journal edition number:
- 14/21
- Publication date:
- 07/04/2021
- Description:
- European patents granted for the Netherlands
European Patent Bulletin
1
- Issue number:
- 202118
- Publication date:
- 05/05/2021
- Description:
- Application number/publication number of the divisional application (Art. 76) changed
2
- Issue number:
- 202114
- Publication date:
- 07/04/2021
- Description:
- Grant (B1)
Annual Fee
- Annual Fee(s) Due Date:
- 30/09/2026
- Annual Fee Number:
- 14
- Annual Fee Amount:
- 800 Euro
- Last Annual Payment Date:
- 12/08/2025
- Last Annual Fee Paid Number:
- 13
- Last Annual Fee Paid Amount:
- 700 Euro
- Payer:
- Master Data Center
| Filing date | Document type | Document Description | Number of pages | File Type | ||
|---|---|---|---|---|---|---|
| 13/07/2021 | Outgoing Correspondence | Letter no formal defects | 1 | /1/3/2/1/7/0800671231/docs/ep18213678.8_1_423026l271.pdf | ||
| 02/07/2021 | Claims | First filed claims | 4 | /1/3/2/1/7/0800671231/docs/ep18213678.8_0_claims20210702164510542.pdf |