USD257977SExpiredUtility
Telephone instrument
Individually held — no corporate assignee on recordPriority: Apr 26, 1978Filed: Apr 26, 1978Granted: Jan 20, 1981
Est. expiryApr 26, 1998(expired)· nominal 20-yr term from priority
Inventors:Knut H. Blomberg
90
PatentIndex Score
27
Cited by
2
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a telephone instrument, as shown.
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