USD609545SActiveUtility

Grindstone

60
Assignee: SANWA KENMA LTDPriority: Feb 3, 2009Filed: Feb 3, 2009Granted: Feb 9, 2010
Est. expiryFeb 3, 2029(~2.5 yrs left)· nominal 20-yr term from priority
Inventors:Kazuhisa UenoKatsuji SunagawaIzumi ArakiEiki Sakaguchi
60
PatentIndex Score
15
Cited by
4
References
1
Claims

Claims

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

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