Door lock indicator

Locks – Parts – attachments – accessories and adjuncts – Condition indicators

Reexamination Certificate

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Details

C070S454000, C070SDIG030, C070SDIG059, C116S080000, C200S043040, C200S043080, C200S061640, C200S061660, C340S542000, C362S100000

Reexamination Certificate

active

07866195

ABSTRACT:
A door lock indicator device is disclosed. The door lock indicator device can include a rotatable portion, a lock status display, and a switch (e.g., a button). The rotatable portion can define an opening shaped to receive a key blade. The door lock indicator device can be installed on a face of a door lock with the opening aligned with a keyhole of the door lock. Rotating a key blade within a keyway of the door lock can cause the rotatable portion to rotate with the door lock's cylinder. The lock status display can include a first indicator light and a second indicator light. Activating the switch can cause the lock status display to indicate a direction of a most recent rotation of the rotatable portion and/or a locked or unlocked status of the associated door lock.

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