USD255045SExpiredUtility

Filter casing

63
Assignee: ULTRAFILTER GMBHPriority: Feb 28, 1977Filed: Aug 26, 1977Granted: May 20, 1980
Est. expiryFeb 28, 1997(expired)· nominal 20-yr term from priority
Inventors:Dirk G. Kronsbein
B01D 2201/34B01D 2201/4046B01D 46/00B01D 35/14B01D 35/1435B01D 35/30
63
PatentIndex Score
18
Cited by
4
References
1
Claims

Claims

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

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