Patent
   D503035
Priority
Mar 04 2004
Filed
Mar 04 2004
Issued
Mar 22 2005
Expiry
Mar 22 2019
Assg.orig
Entity
unknown
39
3
n/a
The ornamental design for an umbrella shaft having seven tubes, as shown and described.

FIG. 1 is a perspective view of an umbrella shaft having seven tubes showing my new design;

FIG. 2 is a front plan view thereof;

FIG. 3 is a rear plan view thereof;

FIG. 4 is a left side plan view thereof;

FIG. 5 is a right side plan view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 A to G shows the cross-sectional view of each tube of the umbrella shaft of my design.

Ko, Chin Sung

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ER1731,
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Patent Priority Assignee Title
6371686, Jun 28 2000 Central shaft for collapsible umbrella
6418949, Jun 28 2000 Fu Tai Umbrella Works Ltd. Multiple-fold umbrella shaft having telescopic tubes outwardly decreased in concave quadrants
D487843, Oct 01 2002 Umbrella shaft
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