USD339760SExpiredUtility
Doorbell
Individually held — no corporate assignee on recordPriority: Mar 6, 1992Filed: Mar 6, 1992Granted: Sep 28, 1993
Est. expiryMar 6, 2012(expired)· nominal 20-yr term from priority
26
PatentIndex Score
4
Cited by
4
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a doorbell, as shown and described.
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