Filter cartridge for an undergravel aquarium filter

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4894151
SERIAL NO

07256904

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

An undergravel filter of an aquarium tank served by a power head to suck water from a chamber located beneath the undergravel filter to circulate this water into the tank. A riser tube connects the filter with the power head and contains a carbon cartridge, fixed to the power head. The carbon cartridge is perforated and has a substantially conical configuration. The cartridge is filled with carbon which provides chemical filtration of the water before it is returned into the aquarium tank.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
WILLINGER BROSWRIGHT WAY OAKLAND NJ

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Woltmann, Klaus Demarest, NJ 40 533

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation