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.:

US 7722278 B1

PDF
Full Text
Expired
Date of Patent:
May. 25, 2010

Filed:

Dec. 09, 2004
Applicant:

Craig Black, Bellevue, WA (US);

Inventor:

Craig Black, Bellevue, WA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L 13/22 (2006.01);
U.S. Cl.
CPC ...
Abstract

The duckbill valve assembly includes at least two duckbill valve members and a flexible, flat flange member which joins the two duckbill valve members together. The flange connects the duckbill valve members together at their respective bases, thereby maintaining the two duckbill valve members in a particular orientation and arrangement relative to each other.


Find Patent Forward Citations

Black, Craig. (2010). Twin duckbill valve assembly (U.S. Patent No. 7722278). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7722278

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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