Digital directional coupler

- Viewsonics, Inc.
Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a top plan view of a digital directional coupler showing a new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a left elevational view thereof;

FIG. 5 is a right elevational view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a perspective view thereof.

Claims

The ornamental design for a digital directional coupler, as shown and described.

Referenced Cited
U.S. Patent Documents
D251972 May 29, 1979 Malocsay
4567318 January 28, 1986 Shu
4806116 February 21, 1989 Ackerman
D301244 May 23, 1989 Chino
4897045 January 30, 1990 Dyck
5153380 October 6, 1992 Chang
D396691 August 4, 1998 Shen
D452681 January 1, 2002 Inoue
6339190 January 15, 2002 Chung
Patent History
Patent number: D470821
Type: Grant
Filed: May 8, 2001
Date of Patent: Feb 25, 2003
Assignee: Viewsonics, Inc. (Pompano Beach, FL)
Inventors: Martin Sperber (Coral Springs, FL), Tibor Urbanek (Boynton Beach, FL)
Primary Examiner: Joel Sincavage
Attorney, Agent or Law Firms: Sonnenschein Nath & Rosenthal, Brian R. McGinley
Application Number: 29/141,526
Classifications
Current U.S. Class: Threaded Engagement (D13/151)
International Classification: 1303;