USD255783SExpiredUtility
Letter bomb detector
Individually held — no corporate assignee on recordPriority: Dec 21, 1977Filed: Dec 21, 1977Granted: Jul 8, 1980
Est. expiryDec 21, 1997(expired)· nominal 20-yr term from priority
Inventors:Ronald B. Hays
13
PatentIndex Score
1
Cited by
1
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a letter bomb detector, as shown and described.
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