The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 16, 2004
Filed:
May. 23, 2003
Applicant:
Inventor:
Terry Irwin Goldman, Lloyd Harbor, NY (US);
Assignee:
Penn-Plax, Inc., Garden City, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01K 6/304 ; B01D 3/5027 ;
U.S. Cl.
CPC ...
A01K 6/304 ; B01D 3/5027 ;
Abstract
A biological filter for an aquarium hang-on filter that attaches to the outflow of the aquarium hang-on filter. The biological filter includes a multiplicity of convoluted plastic channels over which water exiting the aquarium hang-on filter cascades and on the surfaces of which aerobic bacteria can form.