|
PTO
Wrapper
PDF
|
|
Dossier
Espace
Google
|
|
|
|
Patent
D557290
|
|
Priority
Oct 06 2006
|
|
Filed
Oct 06 2006
|
|
Issued
Dec 11 2007
|
|
Expiry
Dec 11 2021
|
|
|
|
Assg.orig
|
|
|
|
Entity
unknown
|
|
6
|
|
17
|
|
n/a
|
|
|
|
The ornamental design for a dry compaction bit for earth boring, as shown.
|
FIG. 1 is a front perspective view of the dry compaction bit for earth boring embodying my new design;
FIG. 2 is a top plan view of the dry compaction bit for earth boring as shown in FIG. 1;
FIG. 3 is a front view of the dry compaction bit for earth boring as shown in FIG. 1;
FIG. 4 is a rear view of the dry compaction bit for earth boring as shown in FIG. 1; and,
FIG. 5 is a bottom plan view of the dry compaction bit for earth boring as shown in FIG. 1.
Melegari, Douglas
| Patent |
Priority |
Assignee |
Title |
| 2635856, |
|
|
|
| 2673717, |
|
|
|
| 2856157, |
|
|
|
| 3269471, |
|
|
|
| 3447616, |
|
|
|
| 4051905, |
Mar 28 1974 |
Gerbruder Heller |
Drill for percussion drilling machines |
| 4314616, |
Jan 28 1980 |
CLEVELAND TWIST DRILL COMPANY, THE |
Die-cast masonry drill with leading hard insert |
| 4889200, |
Nov 03 1987 |
HAWERA Probst GmbH+Co. |
Rock drill |
| 5390750, |
Sep 23 1991 |
The Charles Machine Works, Inc. |
Downhole compaction and stabilization back reamer and drill bit |
| 5487434, |
Nov 12 1993 |
Hilti Aktiengesellschaft |
Rock drill with conveying groove |
| 5553682, |
Jun 04 1994 |
Hilti Aktiengesellschaft |
Rock drill |
| 6089337, |
Feb 22 1997 |
Hilti Aktiengesellschaft |
Drilling and/or chiseling tool |
| 6129162, |
Jun 10 1997 |
Hilti Aktiengesellschaft |
Rock drill |
| 6571890, |
Mar 27 2000 |
Hilti Aktiengesellschaft |
Twist drill |
| 6868924, |
May 19 2000 |
Hawera Probst GmbH |
Rock drill |
| D531650, |
Apr 13 2005 |
|
High speed drill bit for mortar |
| 23539, |
|
|
|
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Date |
Maintenance Fee Events |
n/a
| Date |
Maintenance Schedule |
n/a