USD278670SExpiredUtility

Keyboard stacker

81
Individually held — no corporate assignee on recordPriority: Dec 9, 1982Filed: Dec 9, 1982Granted: May 7, 1985
Est. expiryDec 9, 2002(expired)· nominal 20-yr term from priority
Inventors:Darrell A. Schoenig
81
PatentIndex Score
17
Cited by
2
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a keyboard stacker, as shown.

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