USD302409SExpiredUtility

Rail insulator

31
Individually held — no corporate assignee on recordPriority: Dec 15, 1986Filed: Dec 15, 1986Granted: Jul 25, 1989
Est. expiryDec 15, 2006(expired)· nominal 20-yr term from priority
Inventors:John K. Martin
31
PatentIndex Score
0
Cited by
6
References
1
Claims

Claims

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

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