Resources Contact Us Home Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE     Hand truck extension D440372 Hand truck extension Patent Drawings: Inventor: Williams Date Issued: April 10, 2001 Application: D/122,870 Filed: May 4, 2000 Inventors: Williams; Jana (Redmond, WA) Assignee: Primary Examiner: Chin; Kay H. Assistant Examiner: Attorney Or Agent: Craine; Dean A. U.S. Class: D34/27 Field Of Search: D34/12; D34/13; D34/14; D34/15; D34/16; D34/17; D34/18; D34/19; D34/20; D34/21; D34/22; D34/23; D34/24; D34/25; D34/26; D34/27; 280/47.19; 280/47.27; 280/47.28; 280/42; 280/79.11; 414/490; D12/133; 224/549; 224/506; 224/560; 224/407 International Class: U.S Patent Documents: D340339; 4521030; 5123666; 5160154; 5913527; 5938396 Foreign Patent Documents: Other References: Abstract: Claim: The ornamental design for a hand truck extension, as shown and described. Description: FIG. 1 is a perspective view of the hand truck extension. FIG. 2 is a top plan view of the invention. FIG. 3 is a front plan elevation view of the invention. FIG. 4 is a rear plan elevation view of the invention. FIG. 5 is a bottom plan view of the invention; and, FIG. 6 is a right side elevation view of the invention with the left side being a mirror image thereof. * * * * *       Recently Added Patents Flash memory directory virtualization Nanosphere additives and lubricant formulations containing the nanosphere additives Methods and apparatus for controlling moisture in straw bale core walls Method for assembling a programmer for a medical device Fuel cell with polymer-based fuel absorbing member User interface for a display screen Neurostimulator   Randomly Featured Patents Detection of articles Pneumatic percussive tool with a movement frequency controlled idling position Telescopic seating system with aisle hand rails Thermosensitive recording materials Safety syringe having a needle to be retracted and canted within a protective sleeve Process for obtaining a "diesel cut" fuel by the oligomerization of olefins or their mixtures Deformable scaffolding multicellular stent Methods of and apparatus for sputtering material onto a substrate Housing for a photovoltaically illuminated advertising display Sofa convertible into a bed © 2006. PatentGenius. All Rights Reserved.