USD257516SExpiredUtility
Sewage treatment plant or the like
Individually held — no corporate assignee on recordPriority: Mar 1, 1978Filed: Mar 1, 1978Granted: Nov 11, 1980
Est. expiryMar 1, 1998(expired)· nominal 20-yr term from priority
Inventors:James A. Mixon
31
PatentIndex Score
1
Cited by
5
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a sewage treatment plant or the like, substantially as shown.
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