Door blocking lock

- Blockit & Lockit Systems
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Description

FIG. 1 is a front plan view of a door blocking lock showing our new design; the rear plan view being the same in reverse; the door and knob shown in dashed lines.

FIG. 2 is a left side plan view of the door blocking lock.

FIG. 3 is a right side view of the door blocking lock.

FIG. 4 is a top plan view of the door blocking lock.

FIG. 5 is a bottom plan view of the door blocking lock; and,

FIG. 6 is a top perspective view of the door blocking lock.

The broken lines are shown for illustrative purposes only and form no part of the claimed design.

Referenced Cited
U.S. Patent Documents
D219362 December 1970 Snyder
D230701 March 1974 Lewis et al.
5787548 August 4, 1998 Tzen
5951071 September 14, 1999 Elliot
Patent History
Patent number: D431997
Type: Grant
Filed: Dec 3, 1999
Date of Patent: Oct 17, 2000
Assignee: Blockit & Lockit Systems (Billings, MT)
Inventors: Harvey K. Markegard (Billings, MT), Joseph M. Higgins (Billings, MT)
Primary Examiner: Susan J. Lucas
Assistant Examiner: Jennifer Rivard
Attorney: Rick Patent Law Offices of Rick Martin, P.C. Martin
Application Number: 0/114,928
Classifications
Current U.S. Class: D/8330
International Classification: 0807;