USD483390SExpiredUtility

Audio-visual presentation device

16
Assignee: VIEWWRITER TECHNOLOGIESPriority: Jun 12, 2001Filed: Jun 12, 2001Granted: Dec 9, 2003
Est. expiryJun 12, 2021(expired)· nominal 20-yr term from priority
Inventors:Richard C. LapierreDouglas Steinfeld
16
PatentIndex Score
3
Cited by
6
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an audio-visual presentation device, as shown and described.

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