USD474449SExpiredUtility

Port isolator

74
Assignee: SCHWEITZER ENGINEERING LAB INCPriority: May 29, 2002Filed: May 29, 2002Granted: May 13, 2003
Est. expiryMay 29, 2022(expired)· nominal 20-yr term from priority
Inventors:Tai Rosander
74
PatentIndex Score
19
Cited by
11
References
1
Claims

Claims

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

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