US 6495581
Oxyiminoalkanoic acid derivatives
expired A61KA61K31/42A61K31/421
Quick answer
US patent 6495581 (Oxyiminoalkanoic acid derivatives) held by Takeda Chemical Industries Ltd. expires Mon Dec 12 2022 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- Takeda Chemical Industries Ltd.
- Grant date
- Tue Dec 17 2002 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Dec 12 2022 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 22
- CPC classes
- A61K, A61K31/42, A61K31/421, A61K31/4245, A61K31/426