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Publication numberUSD324480 S
Publication typeGrant
Application numberUS 07/498,144
Publication dateMar 10, 1992
Filing dateMar 22, 1990
Publication number07498144, 498144, US D324480 S, US D324480S, US-S-D324480, USD324480 S, USD324480S
InventorsStevie C. Roop, Peter H. Field
Original AssigneeMedeco Security Locks, Inc.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Dropbolt lock
US D324480 S
Abstract  available in
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  1. The ornamental design for a dropbolt lock, as shown and described.

FIG. 1 is a top, front, and right side perspective view of a dropbolt lock showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a rear elevational view thereof; and

FIG. 6 is a top plan view thereof, the bottom being a mirror image of that shown.

Non-Patent Citations
1The New England Lock and Hardware Co., catalogue page, date unknown (prior to 1966).
2Yale Europa Brochure, date unknown, but prior to 1986.
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7958758Sep 13, 2007Jun 14, 2011The Knox CompanyElectronic lock and key assembly
US8276415Mar 20, 2009Oct 2, 2012Knox AssociatesHolding coil for electronic lock
US8347674Jun 13, 2011Jan 8, 2013Knox AssociatesElectronic lock and key assembly
US8746023Dec 5, 2012Jun 10, 2014The Knox CompanyElectronic lock and key assembly
US9041510Dec 5, 2012May 26, 2015Knox Associates, Inc.Capacitive data transfer in an electronic lock and key assembly
U.S. ClassificationD08/341