USD250415SExpiredUtility

Filter head

72
Individually held — no corporate assignee on recordPriority: Jan 13, 1977Filed: Jan 13, 1977Granted: Nov 28, 1978
Est. expiryJan 13, 1997(expired)· nominal 20-yr term from priority
Inventors:Borje O. RosaenDale P. Fosdick
72
PatentIndex Score
10
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a filter head, as shown.

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