Track ball

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Information

Patent Grant
D387043

References
Source

Patent Number
D387,043
Date Filed
Thursday, July 25, 1996
28 years ago
Date Issued
Tuesday, December 2, 1997
27 years ago

Inventors
- Fu Chin Cheng
Original Assignees
- SYSGRATION LTD.
Examiners
- Chin; Kay H.
Agents
- Bacon & Thomas

US Classifications
- D14 - Recording, communication, or information retrieval equipment
Field of Search
- US
- D14 100
- D14 114
- D14 1141-1149
- 345 163
International Classifications
- 1402
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a track ball, as shown and described.

US Referenced Citations (3)

Number	Name	Date	Kind
D291318	Kim	Aug 1987
D315552	Sacherman	Mar 1991
D335658	Barry	May 1993