USD246153SExpiredUtility

Contoured grading rake

36
Individually held — no corporate assignee on recordPriority: Sep 15, 1976Filed: Sep 15, 1976Granted: Oct 25, 1977
Est. expirySep 15, 1996(expired)· nominal 20-yr term from priority
Inventors:Charles J. Insalaco
36
PatentIndex Score
2
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a contour grading rake, substantially as shown and described.

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