US 6150581
Chitosan/alginate anti-adhesion barrier
expired A61KA61K31/715A61K31/734
Quick answer
US patent 6150581 (Chitosan/alginate anti-adhesion barrier) held by United States Surgical Corporation expires Mon Nov 16 2020 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- United States Surgical Corporation
- Grant date
- Tue Nov 21 2000 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Nov 16 2020 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 18
- CPC classes
- A61K, A61K31/715, A61K31/734, A61K45/06