USD328458SExpiredUtility

Trackball for computer system monitor

77
Assignee: MICROSPEED INCPriority: Apr 9, 1990Filed: Apr 9, 1990Granted: Aug 4, 1992
Est. expiryApr 9, 2010(expired)· nominal 20-yr term from priority
Inventors:Timothy C. Barry
77
PatentIndex Score
22
Cited by
6
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a trackball for computer system monitor, as shown and described.

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