USD326159SExpiredUtility

Stair step for a platform

31
Assignee: RONNINGEN RES & DEVELOPMENT COMPANYPriority: Dec 6, 1989Filed: Dec 6, 1989Granted: May 12, 1992
Est. expiryDec 6, 2009(expired)· nominal 20-yr term from priority
Inventors:Jon H. Eickhoff
31
PatentIndex Score
1
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a stair step for a platform, as shown and described.

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