US 8450323
Substituted derivatives of pyrido[3,2-e][1,4]thiazino[4,3-a]pyrazine and pyrido[3,2-e][1,4]oxazino[4,3-a]pyrazine
granted A61KA61K31/4985A61K31/506
Quick answer
US patent 8450323 (Substituted derivatives of pyrido[3,2-e][1,4]thiazino[4,3-a]pyrazine and pyrido[3,2-e][1,4]oxazino[4,3-a]pyrazine) held by Takeda Pharmaceutical Company Limited expires Mon May 23 2033 00:00:00 GMT+0000 (Coordinated Universal Time). Status: granted.
Key facts
- Applicant
- Takeda Pharmaceutical Company Limited
- Grant date
- Tue May 28 2013 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon May 23 2033 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 16
- CPC classes
- A61K, A61K31/4985, A61K31/506, A61K31/53, A61K31/5383