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. 03, 2009
Filed:
Apr. 14, 2005
Applicants:
David R. Knighton, Minneapolis, MN (US);
Vance D. Fiegel, New Brighton, MN (US);
Inventors:
David R. Knighton, Minneapolis, MN (US);
Vance D. Fiegel, New Brighton, MN (US);
Assignee:
Embro Corporation, St. Louis Park, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 3/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
A device for use in water comprising a carrier having an interior cavity and one or more openings allowing ingress to and egress from the interior cavity; and a moss contained within the interior cavity in which the carrier completely encloses the moss.