Patent
   D412447
Priority
Dec 22 1997
Filed
Jun 22 1998
Issued
Aug 03 1999
Expiry
Aug 03 2013
Assg.orig
Entity
unknown
0
8
n/a
The ornamental design for a sample tube for a percussive hammer, as shown.

FIG. 1 is a side view of a sample tube for percussive hammer made in accordance with our new design;

FIG. 2 is a top elevational view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a cross-sectional side view thereof; and,

FIG. 5 is a perspective view thereof.

McInnes, Malcolm Bicknell, Dewar, John Urquhart

Patent Priority Assignee Title
Patent Priority Assignee Title
1319325,
2230808,
2389208,
2721055,
3308897,
4321974, Dec 16 1978 WIRTH MASCHSINEN-UND BOHRGERATEFABRIK GMBH Annular drilling hammer
239820,
D257239, May 10 1978 The Superior Electric Company Electrical test probe
///
Executed onAssignorAssigneeConveyanceFrameReelDoc
Jun 22 1998SDS Digger Tools Pty Ltd(assignment on the face of the patent)
Jul 17 1998DEWAR, JOHN URQUHARTSDS Digger Tools Pty LtdASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0095630007 pdf
Jul 17 1998MCINNES, MALCOLM BICKNELLSDS Digger Tools Pty LtdASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0095630007 pdf
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule