USD304499SExpiredUtility

Folding stair unit

81
Assignee: STAGERIGHT CORPPriority: May 12, 1988Filed: May 12, 1988Granted: Nov 7, 1989
Est. expiryMay 12, 2008(expired)· nominal 20-yr term from priority
Inventors:Orley David RogersKenneth Edward Staten
81
PatentIndex Score
18
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a folding stair unit, as shown.

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