Patent
   D296928
Priority
Sep 24 1985
Filed
Sep 24 1985
Issued
Jul 26 1988
Expiry
Jul 26 2002
Assg.orig
Entity
unknown
6
3
n/a
The ornamental design for a test tube, as shown and described.

FIG. 1 is a perspective view of a test tube showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and

FIG. 7 is a bottom plan view thereof.

Lee, Guo R., Liu, Ching H.

Patent Priority Assignee Title
5858310, Dec 10 1996 Milton, Jackson Modified sloping test tube
5897839, Dec 10 1996 Modified test tube and test tube rack therefor
6056924, Dec 10 1996 Modified test tube
6202345, Jun 24 1999 Support structure for attachment to automotive cigarette lighter receptacle
D801545, Feb 19 2016 Test tube
D882036, Jun 26 2018 Vacuum distillation hose
Patent Priority Assignee Title
2288065,
3350946,
D246600, May 06 1975 Japan Medical Supply Co., Ltd. Test tube
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