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Patent
D678475
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Priority
May 03 2011
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Filed
May 03 2011
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Issued
Mar 19 2013
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Expiry
Mar 19 2027
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Assg.orig
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Entity
unknown
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17
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28
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n/a
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The ornamental design for the butterfly valve handle extension, as shown and described.
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FIG. 1 is an isometric view of the butterfly valve handle extension of this invention;
FIG. 2 is an end view thereof, the opposite end view being a mirror image thereof;
FIG. 3 is a side view, the opposite side view being a mirror image thereof; and,
FIG. 4 is a top view, the bottom view being a mirror image thereof.
Sisk, David E.
Patent |
Priority |
Assignee |
Title |
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Mar 15 2013 |
BRAY INTERNATIONAL, INC |
Dual use coupling end for pipes and fittings |
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Apr 10 2014 |
SMC Corporation |
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Apr 10 2014 |
SMC Corporation |
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3960177, |
Mar 12 1975 |
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Low torque and low noise butterfly valve disc |
4335738, |
Jun 19 1979 |
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Butterfly valve |
4449267, |
May 26 1982 |
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Floor seal strip |
4469305, |
Oct 22 1981 |
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Low torque butterfly valve disc |
4660323, |
Mar 07 1986 |
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Hollow door sealing wedge |
4848396, |
Jan 10 1986 |
POLAR CORPORATION |
Cast hopper tee |
5360030, |
Oct 14 1993 |
Delaware Capital Formation |
Butterfly valve incorporating sleeve seals |
5842681, |
Feb 26 1996 |
Knappco Corporation |
Pivotal hopper tee with alignable swing-away hopper tee assembly |
6607177, |
Oct 26 2001 |
Salco Products, Inc. |
Hopper tee mounting assembly |
6616123, |
Oct 26 2001 |
SALCO PRODUCTS, INC |
Hopper tee mounting assembly |
6786362, |
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Knappco Corporation |
Swing-away hopper tee |
965322, |
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Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a