USD317346SExpiredUtility

Filter

81
Assignee: CKD CORPPriority: Sep 30, 1988Filed: Mar 30, 1989Granted: Jun 4, 1991
Est. expirySep 30, 2008(expired)· nominal 20-yr term from priority
Inventors:Yasuyuki ItoTatsuaki AoyamaHisanobu Niwa
81
PatentIndex Score
20
Cited by
0
References
1
Claims

Claims

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

Cited by (0)

No later patents cite this yet.

References (0)

No backward citations on record.