Patent · US Active

Filter apparatus

US8486170B2 · kind B2 · utility

85Cited by

2References

25Claims

0Family size

Assignee

G.B.D. CORP. · BS

Inventors

Wayne Ernest Conrad · Hampton, CA
Dave Petersen · Bowmanville, CA

Key dates

Filing date	Mar 10, 2010
Grant date	Jul 16, 2013
Priority date	—
Expiry date	Mar 10, 2031

Classification

Technology area (CPC A)Human Necessities
CPC primaryA47L9/122
WIPO fieldFurniture, games
WIPO sectorOther fields

Abstract

A filter apparatus comprises first and second filters, each having an upstream surface and a downstream surface. At least one bypass channel extends from a position upstream of the upstream surface of the first filter to a position upstream of the upstream surface of the second filter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.