PTO Wrapper PDF
Dossier Espace Google
Patent
   D261432
Priority
Mar 13 1980
Filed
Mar 13 1980
Issued
Oct 20 1981
Expiry
Oct 20 1995
Inventors
Ballard, J…
Assg.orig
Assg.curr
Entity
unknown
Referenced by
7
References
5
Maint.:
n/a
The ornamental design for an emergency shelter for underground installation, substantially as shown and described.

FIG. 1 is a bottom plan view of the ornamental design for an emergency shelter for underground installation.

FIG. 2 is a top plan view of the design.

FIG. 3 is a side elevational view of the design taken from one side of the design. A view taken from the opposite side of the design would be the mirror image of this view.

FIG. 4 is a rear elevational view of the design.

FIG. 5 is a front elevational view of the design.
INVENTORS:

Ballard, James H.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
6401409, May 27 1998 Underground storm shelter
D337166, Feb 22 1991 Storm cellar
D466220, Feb 28 2002 Storm shelter
D478672, Sep 06 2002 CHARLEBOIS TECHNOLOGIES INC Nestable modular underground enclosure
D484614, Sep 06 2002 Charlebois Technologies Inc. Nestable modular underground enclosure
D610701, Jan 22 2008 Subterranean emergency shelter
D924432, Feb 27 2019 Platform with seats for auditoriums
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
2936504,
3164111,
3196813,
132569,
242446,
ASSIGNMENT RECORDS    Assignment records on the USPTO
Executed onAssignorAssigneeConveyanceFrameReelDoc
MAINTENANCE FEES AND DATES:    Maintenance records on the USPTO
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule