US 6194481
Mechanically strong and transparent or translucent composites made using zirconium oxide nanoparticles
expired A61KA61K6/887
Quick answer
US patent 6194481 (Mechanically strong and transparent or translucent composites made using zirconium oxide nanoparticles) held by The Board of Regents of the University of Texas System expires Mon Feb 22 2021 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- The Board of Regents of the University of Texas System
- Grant date
- Tue Feb 27 2001 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Feb 22 2021 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 29
- CPC classes
- A61K, A61K6/887