Patent
   D398063
Priority
Oct 22 1997
Filed
Oct 22 1997
Issued
Sep 08 1998
Expiry
Sep 08 2012
Assg.orig
Entity
unknown
4
3
n/a
The ornamental design for a modular spiral staircase, as shown and described.

FIG. 1 is a front elevational view of the step unit for a modular spiral staircase of the present invention;

FIG. 2 is a back elevational view of the step unit for a modular spiral staircase of FIG. 1;

FIG. 3 is a left side elevational view of the step unit for a modular spiral staircase of FIG. 1;

FIG. 4 is a right side elevational view of the step unit for a modular spiral staircase of FIG. 1;

FIG. 5 is a top plan view of the step unit for a modular spiral staircase of FIG. 1;

FIG. 6 is a bottom plan view of the step unit for a modular spiral staircase of FIG. 1; and,

FIG. 7 is a front elevational in use view of the step unit for a modular spiral staircase of FIG. 1.

The broken lines disclosing a spiral staircase is for illustrative purposes only, and forms no part of the claimed design.

Kline, Anthony M.

Patent Priority Assignee Title
7165362, Jul 15 2002 Apple Inc Glass support member
D478999, Jul 15 2002 APPLE COMPUTER INC Staircase
D781771, May 14 2015 PREMIER ACQUISITION COMPANY, LLC Galley with curved stair and built-ins
D916324, Jun 05 2019 MANTENIMIENTOS AQUAGLASS, S L Staircase step
Patent Priority Assignee Title
4587780, Nov 28 1983 EBB TIDE PTY LIMITED 3 MARIGOLD STREET REVESBY A CORP OF NEW SOUTH WALES Spiral staircase
225981,
D273231, Sep 08 1981 Spiral stairway
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