Block wall
Forsberg September 20, 1
U.S. patent number D297,767 [Application Number 07/047,450] was granted by the patent office on 1988-09-20 for block wall. This patent grant is currently assigned to Keystone Retaining Wall Systems, Inc.. Invention is credited to Paul J. Forsberg.
| United States Patent | D297,767 |
| Forsberg | September 20, 1988 |
Block wall
Claims
The ornamental design for a block wall, as shown and described.
| Inventors: | Forsberg; Paul J. (Richfield, MN) |
|---|---|
| Assignee: | Keystone Retaining Wall Systems,
Inc. (Edina, MN) |
| Appl. No.: | 07/047,450 |
| Filed: | May 11, 1987 |
Related U.S. Patent Documents
| Application Number | Filing Date | Patent Number | Issue Date | ||
|---|---|---|---|---|---|
| 907077 | Sep 15, 1986 | ||||
| Current U.S. Class: | D25/58; D25/114; D25/116 |
| Field of Search: | ;405/284,285,286,33 ;404/41,42,34 ;52/608,605 ;D25/113,114,54,115,116 |
References Cited [Referenced By]
U.S. Patent Documents
| 2882689 | April 1959 | Huch, Jr. et al. |
| 4016693 | April 1977 | Warren |
| 4312606 | January 1982 | Sarikelle |
| 4335549 | June 1982 | Dean |
| 4496266 | January 1985 | Ruekstuhl |
| 4658541 | April 1987 | Haile |
| 1360872 | Apr 1964 | FR | |||
| 336 | 1871 | GB | |||
| 2127872 | Apr 1984 | GB | |||
Other References
|
Concrete Masonry Pictorial, vol. 33, No. 3, c. 1977, p. 5. . The Besser Company brochure, "Modular Concrete Block", 1984. . The Besser Company brochure, "Paving Stone", Jun., 1984.. |
Primary Examiner: Word; A. Hugo
Attorney, Agent or Firm: Burd, Bartz & Gutenkauf
Description
FIG. 1 is a perspective view of a block wall according to my new design;
FIG. 2 is an enlarged front perspective view of a portion of the block wall of FIG. 1.
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