USD269844SExpiredUtility
Device for extracting soil cores for laboratory analysis
Individually held — no corporate assignee on recordPriority: Jan 12, 1981Filed: Jan 12, 1981Granted: Jul 26, 1983
Est. expiryJan 12, 2001(expired)· nominal 20-yr term from priority
Inventors:John V. Hackerson
60
PatentIndex Score
15
Cited by
9
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a device for extracting soil cores for laboratory analysis, substantially as shown.
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