Easy To Use Patents Search & Patent Lawyer Directory

At Patents you can conduct a Patent Search, File a Patent Application, find a Patent Attorney, or search available technology through our Patent Exchange. Patents are available using simple keyword or date criteria. If you are looking to hire a patent attorney, you've come to the right place. Protect your idea and hire a patent lawyer.

Search All Patents:

  This Patent May Be For Sale or Lease. Contact Us

  Is This Your Patent? Claim This Patent Now.

Register or Login To Download This Patent As A PDF

United States Patent D818,056
Lo May 15, 2018

Building block


CLAIM The ornamental design for a building block, as shown and described.
Inventors: Lo; Feng-Jun (Tainan, TW)
Name City State Country Type




Assignee: Delsun Co., Ltd. (Tainan, TW)
Appl. No.: D/615,420
Filed: August 29, 2017

Related U.S. Patent Documents

Application NumberFiling DatePatent NumberIssue Date
29532786Jul 10, 2015

Current U.S. Class: D21/499
Current International Class: 2101
Field of Search: ;D21/478,479,484,485-505 ;446/69,85,102-128 ;434/208,259,403 ;273/153,156,160 ;428/174

References Cited [Referenced By]

U.S. Patent Documents
D279915 July 1985 Arnau Pibet
D286417 October 1986 Takahashi
D296023 May 1988 Tapdrup
D301260 May 1989 McLaughlin
D367898 March 1996 Glynn
D368939 April 1996 Frederiksen
D370504 June 1996 Glynn
D371398 July 1996 Glynn
5683283 November 1997 Glynn
D389408 January 1998 Rask
5795210 August 1998 Kushner
D411591 June 1999 Laserna Fernandez
D417705 December 1999 Rudy
D430231 August 2000 Sorensen
D445148 July 2001 McIntosh
D456463 April 2002 Sorensen
D464381 October 2002 Sorensen
D465247 November 2002 Sorensen
D487544 March 2004 Jessen
D553201 October 2007 Glickman
7347028 March 2008 Bin-Nun
D616046 May 2010 Hwang
D652952 January 2012 Angel
D668302 October 2012 Hino
D686279 July 2013 Andre
D707554 June 2014 Lavoie
D714401 September 2014 Lin
D748741 February 2016 Simonds
D749680 February 2016 Lin
2007/0163010 July 2007 Ishii

Other References

MRCUFF Building Block Pair Cufflinks, Date first available at Amazon.com: Sep. 15, 2014 <https://www.amazon.com/MRCUFF-Building-Cufflinks-Presentation-Polishi- ng/dp/BOONLKE200/>, 1 page. cited by applicant .
Stack-A-Doodle--Stackable Lego Block Crayons, posted on geekalerts.com on Apr. 20, 2012 <http://www.geekalerts.com/stack-a-doodle-stackable-lego-block-crayons- /> , 1 page. cited by applicant.

Primary Examiner: Chin; Cynthia M
Attorney, Agent or Firm: Kamrath; Alan D. Kamrath IP Lawfirm, P.A.


FIG. 1 is a top perspective view of a building block showing my design;

FIG. 2 is a front elevational view thereof with the rear, right and left elevational views being mirror images thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a bottom perspective view thereof.

* * * * *

File A Patent Application

  • Protect your idea -- Don't let someone else file first. Learn more.

  • 3 Easy Steps -- Complete Form, application Review, and File. See our process.

  • Attorney Review -- Have your application reviewed by a Patent Attorney. See what's included.