Folding lunch box
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 23, 1992
Grant Date -
N/A
app pub date -
Oct 12, 1990
filing date -
Oct 12, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A collapsible lunch box that can be folded into a flat package for storage when not in use and can be made ready for use by changing the package into a rectangular tube and pivoting two side panels to close the open ends of the tube. The side panels have locking elements which engage openings on the rectangular tube to keep the box closed. In the folded package position the locking elements on the side panels interlock to hold the package in the folded position.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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