USD457039SExpiredUtility

Grade stake

24
Priority: Jan 29, 2001Filed: Jan 29, 2001Granted: May 14, 2002
Est. expiryJan 29, 2021(expired)· nominal 20-yr term from priority
Inventors:Eric J. Van Alstine
24
PatentIndex Score
5
Cited by
4
References
1
Claims

Claims

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

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