USD319049SExpiredUtility

Computer upper expansion unit

46
Assignee: IBMPriority: Oct 11, 1989Filed: Oct 11, 1989Granted: Aug 13, 1991
Est. expiryOct 11, 2009(expired)· nominal 20-yr term from priority
Inventors:Steven A. SilversteinJames P. Wang
46
PatentIndex Score
4
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamemtal design for a computer upper expansion unit, as shown.

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