US 6261752
Alkaline soluble mixture composed of cellulose derivatives
expired A61KA61K9/2866
Quick answer
US patent 6261752 (Alkaline soluble mixture composed of cellulose derivatives) held by Ferrania, S.p.A. expires Mon Jul 12 2021 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- Ferrania, S.p.A.
- Grant date
- Tue Jul 17 2001 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Jul 12 2021 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 7
- CPC classes
- A61K, A61K9/2866