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Curtis W. Shillingburg Patents |
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Inventor: Shillingburg; Curtis W.
Address: Rock Hill, SC
No. of patents: 7
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| D509911 |
Construction block faces |
September 20, 2005 |
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| D508739 |
Construction block |
August 23, 2005 |
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| D405543 |
Wall block |
February 9, 1999 |
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| 6701687 |
Modular wall block with mechanical course connector |
March 9, 2004 |
| A modular wall block is adapted for being assembled together with a number of other blocks in stacked courses to form a retaining wall. The wall block has a front and rear, top and bottom, and opposing sides. At least one of the opposing sides defines a generally L-shaped vertical slot. |
| 6622445 |
Modular wall block with mechanical anchor pin |
September 23, 2003 |
| A modular wall block is adapted for being assembled together with a number of like blocks in stacked courses to form a retaining wall. The wall block includes a front and rear, top and bottom, and opposing sides. A generally J-shaped anchor has a connecting end and an anchoring end integ |
| 6474036 |
Retaining wall block |
November 5, 2002 |
| A (modular wall block is adapted for being assembled together with a number of like blocks in stacked courses to form a retaining wall. The wall block includes a front face and rear, top and bottom, and opposing sides. A locking shear key extends outwardly from either of the top or botto |
| 6168354 |
Retaining wall block having a locking shear key for residing between respective adjacent sides o |
January 2, 2001 |
| A modular wall block is adapted for being assembled together with a number of like blocks in stacked courses to form a retaining wall. The wall block includes a front face and rear, top and bottom, and opposing sides. A locking shear key extends outwardly from either of the top or bottom |
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