Aquarium tubules
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 22, 1987
Grant Date -
N/A
app pub date -
May 5, 1986
filing date -
May 5, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An aquarium water treatment module comprising a tubule formed of biologically acceptable thermoplastic material. The tubule has a specific gravity proximate that of water. The tubule can be inserted within a filter device such as an internal aquarium filter or a filter cartridge. The tubule is light in weight so that it can disperse within the filter. The tubule supports the propagation of organisms useful in the biological filtration of the water.
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Family
International Classification(s)
Cited Art Landscape
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