Audio-visual presentation device

- Viewwriter Technologies

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Description

An audio-visual presentation device facilitates the presentation and recording of information to an audience. Written material on paper and transparency film can be placed on the device for display to viewers on an attachable viewing device. The device can also be used as a video whiteboard. The entire audio-visual presentation can be recorded for later viewing.

FIG. 1 is a perspective view of an audio-visual presentation device.

FIG. 2 is a front elevation of the audio-visual presentation device.

FIG. 3 is a back elevation of the audio-visual presentation device.

FIG. 4 is a right-side elevation of the audio-visual presentation device.

FIG. 5 is a left-side elevation of the audio-visual presentation device.

FIG. 6 is a top view of the audio-visual presentation device; and,

FIG. 7 is a bottom view of the audio-visual presentation device.

Claims

The ornamental design for an audio-visual presentation device, as shown and described.

Referenced Cited
U.S. Patent Documents
3187626 June 1965 Mindell et al.
3318187 May 1967 Prohaska
D307030 April 3, 1990 Kyhl
D344533 February 22, 1994 Hasegawa
D359030 June 6, 1995 Gildea et al.
D453158 January 29, 2002 Chen
Patent History
Patent number: D483390
Type: Grant
Filed: Jun 12, 2001
Date of Patent: Dec 9, 2003
Assignee: Viewwriter Technologies (Waltham, MA)
Inventors: Richard C. LaPierre (Watertown, MA), Douglas Steinfeld (Marlborough, MA)
Primary Examiner: Adir Aronovich
Attorney, Agent or Law Firm: Hamilton, Brook, Smith & Reynolds, P.C.
Application Number: 29/143,375
Classifications
Current U.S. Class: Element Or Attachment (D16/235)
International Classification: 1602;