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Cleaning sponge

40
Assignee: 3M INNOVATIVE PROPERTIES COPriority: Sep 30, 2013Filed: Mar 26, 2014Granted: Sep 1, 2015
Est. expirySep 30, 2033(~7.2 yrs left)· nominal 20-yr term from priority
Inventors:Satoshi HaraiAkifumi Asano
40
PatentIndex Score
4
Cited by
26
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       The ornamental design for a cleaning sponge, as shown and described.

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