Dual-purpose jar-aquarium
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United States of America Patent
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May 24, 2011
Grant Date -
Sep 7, 2006
app pub date -
Mar 3, 2005
filing date -
Mar 3, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A dual-purpose cap for a jar-aquarium comprising a topwall having (a) at least one ingress aperture sized to accept free unbroken water-stream passage therethrough for cap-on filling of the jar-aquarium and (b) at least one egress aperture smaller than the ingress aperture and spaced therefrom to facilitate controlled cap-on out-pouring of water, whereby jar-aquarium water may be changed without removing the cap. A series of egress apertures may be grouped together along the edge of the topwall.
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