US 6417175
Phosphonocephem derivatives, process for the preparation of the same, and use thereof
expired A61PA61P31/00A61P31/04
Quick answer
US patent 6417175 (Phosphonocephem derivatives, process for the preparation of the same, and use thereof) held by Takeda Chemical Industries Ltd. expires Mon Jul 04 2022 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- Takeda Chemical Industries Ltd.
- Grant date
- Tue Jul 09 2002 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Jul 04 2022 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 21
- CPC classes
- A61P, A61P31/00, A61P31/04