USD328789SExpiredUtility
Filter sheet support element
Individually held — no corporate assignee on recordPriority: Mar 1, 1990Filed: Mar 1, 1990Granted: Aug 18, 1992
Est. expiryMar 1, 2010(expired)· nominal 20-yr term from priority
Inventors:Henry B. Kopf
93
PatentIndex Score
41
Cited by
37
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a filter sheet support element, as shown and described.
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