Inter-locking construction block
Description
Claims
The ornamental design for an inter-locking construction block, as shown and described.
Referenced Cited
U.S. Patent Documents
| D252951 | September 18, 1979 | Schuring |
| D420711 | February 15, 2000 | Glickman |
| D457971 | May 28, 2002 | Schrader et al. |
| D468839 | January 14, 2003 | Bland |
| 6578338 | June 17, 2003 | Nanayakkara |
| D479000 | August 26, 2003 | van Oort |
| D612069 | March 16, 2010 | Usul et al. |
| 8061095 | November 22, 2011 | Bucheger |
| 20020046529 | April 25, 2002 | Nanayakkara |
Patent History
Patent number: D683055
Type: Grant
Filed: Feb 14, 2012
Date of Patent: May 21, 2013
Inventor: Lakdas Nanayakkara (Boca Raton, FL)
Primary Examiner: Anhdao Doan
Application Number: 29/413,306
Type: Grant
Filed: Feb 14, 2012
Date of Patent: May 21, 2013
Inventor: Lakdas Nanayakkara (Boca Raton, FL)
Primary Examiner: Anhdao Doan
Application Number: 29/413,306
Classifications
Current U.S. Class:
Construction Block Or Brick Type (17) (D25/113)