USD269267SExpiredUtility
Telephone amplifier
Individually held — no corporate assignee on recordPriority: Sep 14, 1982Filed: Sep 14, 1982Granted: Jun 7, 1983
Est. expirySep 14, 2002(expired)· nominal 20-yr term from priority
Inventors:Dwight C. Brown
63
PatentIndex Score
8
Cited by
4
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a telephone amplifier, as shown and described.
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