Interlocking building element

Details Interlocking building element Interlocking building element

1999-12-06

2001-05-29

Zarfas, Louis S. (Department: 2914)

Building units and construction elements

Architectural stock material

Construction block or brick type

Design Patent

active

D0443074

CLAIM:
The ornamental design for an interlocking building element, as shown and described.

REFERENCES:
patent: D. 107741 (1938-01-01), Bissell
patent: D. 343908 (1994-02-01), Naether
patent: 3602111 (1971-08-01), Clemente
patent: 3733675 (1973-05-01), Diederich
patent: 4128357 (1978-12-01), Barth et al.
patent: 4919565 (1990-04-01), Gopfert
patent: 5046887 (1991-09-01), Fontana et al.
patent: 5230584 (1993-07-01), Grossman
patent: 24 15 782 (1975-10-01), None

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