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US Patent 7722278 Twin duckbill valve assembly

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Patent Citations Received
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US Patent D1041905 Toothbrush head
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US Patent 11930915 Brush with fluid delivery
1
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Patent 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.

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US Patent 07722278 Twin duckbill valve assembly US Patent 7722278 Twin duckbill valve assembly

Infobox
Patent Number
0772227812
Patent Number
772227812
Edits on 18 May, 2023
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Official Website
https://pdfpiw.uspto.gov/.piw?Docid=0772227812
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Infobox
Is a
Patent
Patent
1
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
077222781
Date of Patent
May 25, 2010
1
Patent Application Number
105812171
Date Filed
December 9, 2004
1
Official Website
https://pdfpiw.uspto.gov/.piw?Docid=077222781
Patent Primary Examiner
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David J. Walczak
1
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"Entity importer update"
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edited on 26 Sep, 2022
Infobox
Is a
Patent
Patent
1
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
077222781
Date of Patent
May 25, 2010
1
Patent Application Number
105812171
Date Filed
December 9, 2004
1
Official Website
https://pdfpiw.uspto.gov/.piw?Docid=077222781
Patent Primary Examiner
‌
David J. Walczak
1
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Website URL
https://pdfpiw.uspto.gov/.piw?Docid=07722278
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 US Patent 07722278 Twin duckbill valve assembly

Infobox
Is a
Patent
Patent
Patent jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent number
07722278
Date of patent
May 25, 2010
Patent application number
10581217
Date Filed
December 9, 2004
Patent primary examiner
‌
David J. Walczak

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