USD248235SExpiredUtility

Metallurgical test specimen

12
Individually held — no corporate assignee on recordPriority: May 21, 1976Filed: May 21, 1976Granted: Jun 20, 1978
Est. expiryMay 21, 1996(expired)· nominal 20-yr term from priority
Inventors:Richard E. HaughtingtonDonald R. Wray
12
PatentIndex Score
1
Cited by
30
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a metallurgical test specimen, substantially as shown.

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