Draw back pump

United States of America Patent

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Sep 11, 2007
Grant Date
Dec 15, 2005
app pub date
Sep 13, 2004
filing date
Jun 9, 2004

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Abstract

A piston pump dispenser having a reciprocating piston pump arrangement which, in a dispensing stroke, dispenses fluid from an outlet and, in a charging stroke, to draw fluid from a reservoir also draws back fluid from the outlet through which fluid is dispensed in the dispensing stroke.

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Patent Owner(s)

Patent Owner	Address
HYGIENE-TECHNIK INC	BEAMSVILLE ONTARIO

International Classification(s)

B67D:DISPENSING, DELIVERING, OR TRANSFERRING LIQUIDS, N....

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Ophardt, Heiner	Vineland, CA	251	5134

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Draw back pump

Number of patents in Portfolio can not be more than 2000

United States of America Patent

10938701

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PATENT NO	7267251
APP PUB NO	20050276707A1
SERIAL NO	10938701
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
September 11, 2007	US,7267251,B2 US7267251B2	GRANTED PATENT AS SECOND PUBLICATION
December 15, 2005	US,20050276707,A1 US20050276707A1	FIRST PUBLISHED PATENT APPLICATION

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10938701

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