Tornado shelter

Details Tornado shelter Tornado shelter

2006-09-18

2008-08-26

Zarfas, Louis S (Department: 2914)

Building units and construction elements

Structure

Fully enclosed

Design Patent

active

D0575878

CLAIM:
The ornamental design for a tornado shelter, as shown and described.

REFERENCES:
patent: 2485914 (1949-10-01), Owens
patent: 2704301 (1955-03-01), Feketics
patent: 2831912 (1958-04-01), Williams
patent: 3457698 (1969-07-01), Albers
patent: 3526067 (1970-09-01), Seghizzi et al.
patent: 3600870 (1971-08-01), Greenhalgh
patent: D242924 (1977-01-01), McKnight
patent: 4584801 (1986-04-01), Weinberger
patent: 4843788 (1989-07-01), Gavin et al.
patent: 5136463 (1992-08-01), Webster
patent: D344140 (1994-02-01), Webster
patent: 6161345 (2000-12-01), Hope et al.
patent: 6415558 (2002-07-01), Cherry
patent: 2001/0037615 (2001-11-01), Riech

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