USD314899SExpiredUtility

Orifice tube expander

14
Individually held — no corporate assignee on recordPriority: Nov 6, 1987Filed: Nov 6, 1987Granted: Feb 26, 1991
Est. expiryNov 6, 2007(expired)· nominal 20-yr term from priority
Inventors:Don Young
14
PatentIndex Score
1
Cited by
7
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an orifice tube expander, as shown and described.

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