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Patent
   D275997
Priority
Sep 29 1982
Filed
Sep 29 1982
Issued
Oct 16 1984
Expiry
Oct 16 1998
Inventors
Rassias, J…
Assg.orig
Assg.curr
Entity
unknown
Referenced by
5
References
2
Maint.:
n/a
The ornamental design for a building block, as shown.

FIG. 1 is an isometric view of a building block according to the invention;

FIG. 2 is a side elevation of a building block according to the invnetion;

FIG. 3 is a top plan view of a building block according to the invention; and

FIG. 4 is an end elevation of a building block according to the invention.
INVENTORS:

Rassias, John N., Clark, Cecily M.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D340776, Aug 27 1992 CSTW, Inc. Retaining wall block
D342795, Aug 27 1992 CSTW, Inc. Retaining wall block
D829248, Feb 18 2016 FSBL ACQUISITION, INC ; FOSBEL, INC Regenerator wall block
D916153, Feb 18 2016 FSBL ACQUISITION, INC ; FOSBEL, INC Regenerator wall block
D956838, Feb 18 2016 Fosbel, Inc.; DSF REFRACTORIES AND MINERALS LIMITED Regenerator wall block
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
CH321410,
GB473075,
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