US 6696500
Sustained-release preparation
expired A61KA61K47/593A61K9/1647
Quick answer
US patent 6696500 (Sustained-release preparation) held by Takeda Chemical Industries Ltd. expires Mon Feb 19 2024 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- Takeda Chemical Industries Ltd.
- Grant date
- Tue Feb 24 2004 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Feb 19 2024 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 1
- CPC classes
- A61K, A61K47/593, A61K9/1647