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Retaining wall block |
| D300254 |
Retaining wall block
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| Patent Drawings: | |
| Inventor: |
Forsberg |
| Date Issued: |
March 14, 1989 |
| Application: |
07/202,993 |
| Filed: |
June 6, 1988 |
| Inventors: |
Forsberg; Paul J. (Burnsville, MN)
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| Assignee: |
Keystone Retaining Wall Systems, Inc. (Edina, MN) |
| Primary Examiner: |
Word; A. Hugo |
| Assistant Examiner: |
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| Attorney Or Agent: |
Burd, Bartz & Gutenkauf |
| U.S. Class: |
D25/114; D25/116 |
| Field Of Search: |
405/284; 405/285; 405/286; 405/33; 404/41; 404/42; 404/34; 82/608; 82/605; D25/113; D25/114; D25/115; D25/116; D25/117; D25/118 |
| International Class: |
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| U.S Patent Documents: |
126547; 228052; D237704; 566924; 810748; 1092621; 1414444; 1456498; 2235646; 2882689; 2963828; 3036407; 3274742; 3390502; 3430404; 3557505; 3936987; 3995434; 4016693; 4110949; 4207718; 4208850; 4228628; 4229123; 4312606; 4335549; 4454699; 4496226; 4524551; 4572699 |
| Foreign Patent Documents: |
336; 1385207; 392474; 1360872; 205452; 2127872A |
| Other References: |
The Hollow Building Tile Assoc, Handbook, p. 11, Jan. 1924..
Concrete Masonry Pictorial, vol. 33, No. 3 C 1977, p. 35..
The Besser Company brochure "Modular Concrete Block", 1984, pp. 18-19..
The Besser Company brochure "Paving Stone", Jun. 1984, pp..
The Besser Company Bulletin, Feb. 1985.. |
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| Abstract: |
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| Claim: |
The ornamental design for a retaining wall block, as shown and described. |
| Description: |
FIG. 1 is a bottom front perspective view of a retaining wall block of my new design;
FIG. 2 is a bottom plan view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a sectional view taken along line 6--6 of FIG. 2; and
FIG. 7 is a sectional view taken along line 7--7 of FIG. 3.
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