USD415676SExpiredUtility

Security screw

82
Assignee: Mampay Screw Works LtdPriority: Dec 4, 1997Filed: May 28, 1998Granted: Oct 26, 1999
Est. expiryDec 4, 2017(expired)· nominal 20-yr term from priority
Inventors:Shigeo NegishiShigeru Kanemaru
82
PatentIndex Score
57
Cited by
4
References
1
Claims

Claims

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

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