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Patent
D310491
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Priority
Jun 26 1987
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Filed
Jun 26 1987
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Issued
Sep 11 1990
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Expiry
Sep 11 2004
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Assg.orig
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Entity
unknown
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2
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13
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n/a
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The ornamental design for a core sample tube, as shown and described.
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FIG. 1 is a front elevational view of a core sample tube showing my new
design, the rear elevational view being a mirror image;
FIG. 2 is a top plan view;
FIG. 3 is a bottom plan view;
FIG. 4 is a left side elevational view; and
FIG. 5 is a right side elevational view thereof.
Mitchell, Dale
Patent |
Priority |
Assignee |
Title |
3075588, |
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|
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3515230, |
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3596719, |
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3878906, |
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|
|
408223, |
|
|
|
4117896, |
Jul 11 1977 |
|
Soil sampler |
4252200, |
Feb 16 1979 |
|
Sampling device |
4556114, |
Mar 30 1983 |
|
Soil sampler device |
4576498, |
Feb 14 1985 |
Central Mine Equipment Company |
Assembly structure for a soil sampler |
4587857, |
Oct 18 1984 |
CORE HOLDINGS B V |
Method for mounting poorly consolidated core samples |
4776719, |
Nov 09 1987 |
|
Tubular structural system |
239820, |
|
|
|
D288180, |
Oct 02 1985 |
|
Soil compaction tester |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
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Maintenance Fee Events |
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Maintenance Schedule |
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