Key patent expiration dates
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Key Patent Expiration Dates
The following is a reference for the expiration dates of keys and key profiles patents. These are typically associated with high security locks and exist to prevent unauthorized manufacturing of key blanks.
| Manufacturer | Model | Expiration |
| ASSA | V-10 | 2014 |
| Medeco | Original | 1985 |
| Medeco | Biaxial | 2005 |
| Medeco | KeyMark | 2011 |
| Medeco | M3 | 2021 |
| Medeco | KeyMark X4 | 2027 |
| Schlage | Primus | 2007 |
| Schlage | Everest | 2014 |
| Schlage | Primus Everest | 2014 |
| Schlage | Everest SFIC | 2014 |
| Schlage | Primus XP | 2024 |
References
