US 6489315
Cyclic compounds, their production and use
expired A61PA61P1/00A61P11/00
Quick answer
US patent 6489315 (Cyclic compounds, their production and use) held by Takeda Chemical Industries Ltd. expires Mon Nov 28 2022 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- Takeda Chemical Industries Ltd.
- Grant date
- Tue Dec 03 2002 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Nov 28 2022 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 20
- CPC classes
- A61P, A61P1/00, A61P11/00, A61P11/06, A61P13/00