US 6573289
Naphthalene derivatives, their production and use
expired A61PA61P35/00A61P43/00
Quick answer
US patent 6573289 (Naphthalene derivatives, their production and use) held by Takeda Chemical Industries Ltd. expires Mon May 29 2023 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- Takeda Chemical Industries Ltd.
- Grant date
- Tue Jun 03 2003 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon May 29 2023 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 35
- CPC classes
- A61P, A61P35/00, A61P43/00