Economically constructed and environmentally protective umbrella formed with one-piece frame
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United States of America Patent
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Sep 22, 2009
Grant Date -
Mar 27, 2008
app pub date -
Sep 25, 2006
filing date -
Sep 25, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
An umbrella comprises: a central shaft having an upper hub formed on a top portion of the central shaft; an one-piece frame having a plurality of rib assemblies integrally formed with an upper ferrule and a lower ferrule, with the upper ferrule secured to the upper hub and with the lower ferrule formed with a lower runner slidably held on the central shaft; and an umbrella cloth or cover secured on the frame; thereby forming an umbrella which can be easily constructed for use; and can also be easily detached, when damaged, for reclaiming the parts or elements in construction of the umbrella for environmental protection purpose.
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