Telephone key expansion unit

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Information

Patent Grant
D387063

References
Source

Patent Number
D387,063
Date Filed
Thursday, June 15, 1995
29 years ago
Date Issued
Tuesday, December 2, 1997
26 years ago

Inventors
Original Assignees
- SIEMENS AKTIENGESELLSCHAFT
Examiners
- Asch; Jeffrey

US Classifications
- D14 - Recording, communication, or information retrieval equipment
Field of Search
- US
- D14 140
- D14 142
- D14 149
- D14 150
- D14 218
- D14 240
- D14 241
- 379 419
- 379 420
- 379 428
- 379 440
- 379 433-436
- 379 441
- 379 442
International Classifications
- 1403
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a telephone key expansion unit, as shown and described.

US Referenced Citations (10)

Number	Name	Date	Kind
D306027	Gagnon	Feb 1990
D306859	Helstab et al.	Mar 1990
D311918	Renard	Nov 1990
D312461	Ando	Nov 1990
D317920	Fuqua et al.	Jul 1991
D319235	Sato	Aug 1991
D340057	Wetzel et al.	Oct 1993
D346385	Wetzel et al.	Apr 1994
4790007	Richter et al.	Dec 1988
5373556	Johnson	Dec 1994

Non-Patent Literature Citations (1)

Entry
B. A. Pargh, 1992 Spring/Summer Catalog, Panasonic 6X16 Electronic Modular Switching System, p. 330, 2nd Article from top at far right.