US 6723722
Acylhydrazine derivatives, their production and use
expired A61PA61P9/10
Quick answer
US patent 6723722 (Acylhydrazine derivatives, their production and use) held by Takeda Chemical Industries Ltd. expires Mon Apr 15 2024 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- Takeda Chemical Industries Ltd.
- Grant date
- Tue Apr 20 2004 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Apr 15 2024 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 24
- CPC classes
- A61P, A61P9/10