US 6518303
2-phenylpyran-4-one derivatives
expired A61PA61P21/00A61P25/00
Quick answer
US patent 6518303 (2-phenylpyran-4-one derivatives) held by Almirall Prodesfarma S.A. expires Mon Feb 06 2023 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- Almirall Prodesfarma S.A.
- Grant date
- Tue Feb 11 2003 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Feb 06 2023 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 10
- CPC classes
- A61P, A61P21/00, A61P25/00, A61P25/28, A61P29/00