USD353370SExpiredUtility

Computer trackball

52
Assignee: MICROSOFT CORPPriority: Mar 5, 1993Filed: Mar 5, 1993Granted: Dec 13, 1994
Est. expiryMar 5, 2013(expired)· nominal 20-yr term from priority
Inventors:Stuart AshmunCharlie GarthwaiteBridget CameronAllan H. StephanMichael D. NelsonMike M. PaullPaul E. BradleyJames R. YurchencoElinor J. Fulton
52
PatentIndex Score
7
Cited by
19
References
1
Claims

Claims

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

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