Concrete block
Description
FIG. 1 is a front perspective of a concrete block cast with a concave-convex decorative face;
FIG. 2 is a rear perspective of a concrete block cast with a concave-convex decorative face;
FIG. 3 is a front perspective of a concrete block with a cleaved decorative face bounded by concave cast portions; and,
FIG. 4 is a rear perspective of a concrete block with a cleaved decorative face bounded by concave cast portions.
Referenced Cited
U.S. Patent Documents
Other references
D136928 | December 1943 | Esson |
D298463 | November 8, 1988 | Forsberg |
D305574 | January 16, 1990 | Sakata |
D311444 | October 16, 1990 | Forsberg |
D316904 | May 14, 1991 | Forsberg |
1534060 | April 1925 | Dexter |
2061631 | November 1936 | Lan |
2881613 | April 1959 | Taylor et al. |
4738059 | April 19, 1988 | Dean, Jr. |
4798499 | January 17, 1989 | Yamada |
4802320 | February 7, 1989 | Forsberg |
- Balcon, Inc. brochure page, dated 1984, top left side of page stone labeled 4.
Patent History
Patent number: D359811
Type: Grant
Filed: May 24, 1993
Date of Patent: Jun 27, 1995
Inventor: Robert N. Nerison (Bloomington, MN)
Primary Examiner: Doris Clark
Application Number: 0/8,694
Type: Grant
Filed: May 24, 1993
Date of Patent: Jun 27, 1995
Inventor: Robert N. Nerison (Bloomington, MN)
Primary Examiner: Doris Clark
Application Number: 0/8,694
Classifications
Current U.S. Class:
Rectangular Or Square Detail (D25/118)