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PTO
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Patent
D436237
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Priority
Mar 14 2000
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Filed
Mar 14 2000
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Issued
Jan 09 2001
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Expiry
Jan 09 2015
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Assg.orig
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Entity
unknown
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4
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12
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n/a
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The ornamental design for a oil well casing brush tool, as shown and described.
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FIG. 1 is a front elevational view, with the rear, right, and left views
being mirror images, showing our new design;
FIG. 2 is a bottom plan view thereof; and,
FIG. 3 is a top plan view thereof.
Mosley, Terry Ray, Matthews, Roy H.
| Patent |
Priority |
Assignee |
Title |
| 3032114, |
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| 3827492, |
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| 4438812, |
Aug 23 1982 |
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Brush tool for wells |
| 4501322, |
Dec 08 1983 |
|
Hyper cleaning casing brush |
| 5002139, |
Jul 16 1988 |
Hawera Probst GmbH & Co. |
Drilling tool |
| 5570742, |
Jun 16 1993 |
WELL-FLOW TECHNOLOGIES, INC |
Tubular cleaning tool |
| 5711046, |
Apr 01 1995 |
Rotary Drilling Supplies of Europe Limited |
Well cleaning apparatus |
| 5819353, |
Sep 01 1995 |
Oiltools International B.V. |
Tool for cleaning or conditioning tubular structures such as well casings |
| 5829521, |
Feb 21 1997 |
M-I L L C |
Down hole cleaning device and method |
| 5947203, |
Feb 21 1997 |
M-I L L C |
Method of cleaning a down hole casing string |
| GB2195378, |
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| WO9429569, |
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| Date |
Maintenance Fee Events |
n/a
| Date |
Maintenance Schedule |
n/a