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Retaining wall building block |
| D340996 |
Retaining wall building block
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| Patent Drawings: | |
| Inventor: |
Woolbright |
| Date Issued: |
November 2, 1993 |
| Application: |
07/954,487 |
| Filed: |
September 30, 1992 |
| Inventors: |
Woolbright; Mark A. (St. Louis, MO)
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| Assignee: |
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| Primary Examiner: |
Word; A. Hugo |
| Assistant Examiner: |
Clark; Doris |
| Attorney Or Agent: |
Senniger, Powers, Leavitt & Roedel |
| U.S. Class: |
D25/113 |
| Field Of Search: |
D25/112; D25/113; 52/598; 52/608; 405/284 |
| International Class: |
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| U.S Patent Documents: |
D217244; D295365; D296007; D300253; D300254; D310267; 1015584; 1349552; 3073061; 3389499; 4060952; 4107894; 4229123; 4379659; 4426176; 4521138; 4565043; 4671706; 4684294; 4914876; 4920712; 4930283; 4964761; 5044834; 5066169; 5072566 |
| Foreign Patent Documents: |
2651258 |
| Other References: |
Seagren Industries, Inc., St. Louis, Mo., Loffelstein Retaining Walls, pp. 1-4 and insert , Circa. 1990..
Kiltie Corporation, North St. Paul Minn., Versa-Lok Retaining Wall Systems, Foldable insert, 1989..
Keystone Retaining Wall Systems, Inc., Minneapolis, Minn., Compac Unit, pp. 1 and 2, 1990..
Keystone Retaining Wall Systems, Inc., Minneapolis, Minn., Keystone Retaining Wall Systems, Foldable insert, 1991..
Allan Block Corporation, Bloomington, Minn., Allan Block Retaining Walls, pp. 1-4 and two inserts, 1990..
Stone Wall, Lanscape Retaining Wall System, pp. 1-4 and one insert, Circa. 1990.. |
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| Abstract: |
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| Claim: |
The ornamental design for retaining wall building block, as shown and described. |
| Description: |
FIG. 1 is a top plan view of a retaining wall building block showing my new design;
FIG. 2 is a bottom plan thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a rear view thereof; and,
FIG. 6 is a left side elevational view thereof.
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