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 Patent Numbers
Abloy Easy 2040 FI20195157A1 & FI128726B
Abloy Protec2 2030
ASSA Twin V-10 2014 5,067,335 & 5,640,865
Bilock Exclusive 2033
EVVA DPS 2022 5,797,287
EVVA 4KS DPS 2035
Medeco Original 1985
Medeco Biaxial 2005
Medeco KeyMark 2011
Medeco M3 2021 6,477,875
Medeco KeyMark X4 2027
Medeco M4 2040
Sargent Signature 2014
Schlage Primus 2007[1] 4,756,177 & 4,815,307
Schlage Everest 2014[1] 5,715,717
Schlage Primus Everest 2014[1] 5,715,717 & 5,809,816
Schlage Everest SFIC 2014[2] 5,715,717
Schlage Primus XP 2024[1] 7,159,424


References

Medeco 2011 Product Catalog: http://medeco.com/images/stories/about/product/6-1-2011-DS_US_Rev_C_NP.PDF

See also

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