USD331961SExpiredUtility

Combined filter and regulator unit for pneumatic circuits

45
Individually held — no corporate assignee on recordPriority: Oct 30, 1990Filed: Apr 19, 1991Granted: Dec 22, 1992
Est. expiryOct 30, 2010(expired)· nominal 20-yr term from priority
Inventors:Carlos E. RidolfiHiginio B. Ridolfi
45
PatentIndex Score
11
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a combined filter and regulator unit for pneumatic circuits, as shown and described.

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