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Patent
D788883
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Priority
Apr 16 2015
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Filed
Apr 16 2015
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Issued
Jun 06 2017
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Expiry
Jun 06 2031
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Assg.orig
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Entity
unknown
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0
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26
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n/a
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I claim the ornamental design for a pressure relief valve for use with concrete pumping system, as shown and described.
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FIG. 1 front elevational view showing my new design,
FIG. 2 is a left side elevational view, it being understood that a right side elevational view is a mirror image hereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a top plan view thereof; and,
FIG. 5 is a bottom plan view thereof.
Drake, Robert A
| Patent |
Priority |
Assignee |
Title |
| Patent |
Priority |
Assignee |
Title |
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Jul 21 1976 |
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Sep 22 1977 |
THOMSEN EQUIPMENT COMPANY, A CORP OF DEL |
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Oct 08 1981 |
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Feb 13 1983 |
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Pump for slurries |
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Oct 13 1989 |
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Concrete-pumping device |
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Mar 27 1995 |
ChemGrout, Inc. |
Quick release interchangeable valve arrangement for slurry pump systems |
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Feb 09 1998 |
Putzmeister Engineering GmbH |
Support pipe for concrete pump with pivoting valve |
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Jan 13 1999 |
REINERT, GERALD H |
Concrete pump with pivotable hopper assembly |
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Sep 28 1998 |
Putzmeister Concrete Pumps GmbH |
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Oct 11 2002 |
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Concrete pump with S-tube valve assembly with wear ring-spring-retainer ring construction |
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Jan 07 2002 |
WESTCHESTER CAPITAL, L L C |
Telescopic boom-mounted concrete pump apparatus |
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Feb 12 2001 |
Schwing GmbH |
Distribution device for thick matter, especially for concrete |
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May 28 2004 |
Reinert Manufacturing Inc. |
Concrete pump with pivotable hopper asssembly |
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
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