Latch

Closure fasteners – Bolts – Swinging

Reexamination Certificate

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Details

C292SDIG023

Reexamination Certificate

active

07086671

ABSTRACT:
An entry door lock system includes an energy storage device (27) to permit unlatching if unlatching movement of a door handle occurs before the latch has been unlocked. The device (27) is passive if unlocking occurs before unlatching movement of the door handle. The invention avoids the need for repeat movement of the door handle in cases where unlocking follows initial door handle movement.

REFERENCES:
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patent: 4097077 (1978-06-01), Gahrs
patent: 5427421 (1995-06-01), Hamaguchi
patent: 5445423 (1995-08-01), Mader
patent: 5803515 (1998-09-01), Arabia et al.
patent: 5844470 (1998-12-01), Garnault et al.
patent: 6050620 (2000-04-01), Rogers et al.
patent: 6286878 (2001-09-01), Hochart et al.
patent: 6367296 (2002-04-01), Dupont
patent: 6592157 (2003-07-01), Spurr
patent: 4005641 (1990-08-01), None
patent: 41 29 706 (1993-03-01), None
patent: 19807384 (1999-08-01), None
patent: 0331832 (1988-05-01), None
patent: 0 304 357 (1989-02-01), None
patent: 0879930 (1998-05-01), None
patent: 00307599 (2001-01-01), None
Communication of a Notice of Opposition dated Feb. 23, 2005.

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