USD296928SExpiredUtility

Test tube

38
Individually held — no corporate assignee on recordPriority: Sep 24, 1985Filed: Sep 24, 1985Granted: Jul 26, 1988
Est. expirySep 24, 2005(expired)· nominal 20-yr term from priority
Inventors:Guo R. LeeChing-Hsiang Liu
38
PatentIndex Score
6
Cited by
3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a test tube, as shown and described.

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