US 6638919
Antiviral purine derivatives
expired A61PA61P31/00A61P31/12
Quick answer
US patent 6638919 (Antiviral purine derivatives) held by University College Cardiff Consultants Limited expires Mon Oct 23 2023 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- University College Cardiff Consultants Limited
- Grant date
- Tue Oct 28 2003 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Oct 23 2023 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 19
- CPC classes
- A61P, A61P31/00, A61P31/12, A61P31/14, A61P31/16