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Patent
D577270
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Priority
Mar 11 2008
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Filed
Mar 11 2008
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Issued
Sep 23 2008
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Expiry
Sep 23 2022
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Assg.orig
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Entity
unknown
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2
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14
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n/a
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The ornamental design for a ratchet head extension apparatus, as shown and described.
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FIG. 1 is a top perspective view of a ratchet head extension apparatus showing my new design;
FIG. 2 is a top view of the ratchet head extension apparatus and which is a mirror image of a bottom view of the same; and,
FIG. 3 is a side elevated view of the ratchet head extension apparatus.
The broken lines shown in FIG. 3 are for illustrative purposes only and form no part of the claimed design.
Roose, Danny T.
| Patent |
Priority |
Assignee |
Title |
| 2691316, |
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|
| 4279314, |
May 05 1980 |
|
Ratchet wrench attachment |
| 4506567, |
Mar 07 1983 |
|
Maximum capability wrench |
| 4688454, |
Jul 26 1985 |
The Boeing Company; BOEING COMPANY THE SEATTLE, WA A CORP OF WA |
Open-ended, high torque wrench for use on nuts to which there is limited access |
| 5107729, |
Feb 22 1991 |
|
Master tool |
| 5339710, |
Jun 21 1993 |
|
Offset line socket |
| 5544553, |
Feb 24 1994 |
|
Off-set geared nutrunner attachment |
| 6799492, |
Nov 27 2002 |
|
Ratchet wrench |
| 7062992, |
Oct 29 2004 |
Norwolf Tool Works |
Constant rotation rotary torque multiplier |
| 7168345, |
Sep 21 2005 |
|
Palm type spanner |
| 7278338, |
Dec 28 2004 |
|
Control device for ratchet wrench |
| 20060288821, |
|
|
|
| D268805, |
Sep 08 1980 |
ROCKWELL HEAVY VEHICLE SYSTEM, INC |
Wrench |
| D332039, |
Aug 30 1990 |
|
Air ratchet wrench |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Date |
Maintenance Fee Events |
n/a
| Date |
Maintenance Schedule |
n/a