USD326267SExpiredUtility

Portable telephone amplifier unit

65
Individually held — no corporate assignee on recordPriority: Dec 7, 1989Filed: Dec 7, 1989Granted: May 19, 1992
Est. expiryDec 7, 2009(expired)· nominal 20-yr term from priority
Inventors:Margaret WeiserIsaac Weiser
65
PatentIndex Score
10
Cited by
9
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a portable telephone amplifier unit, as shown and described.

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