USD338293SExpiredUtility

Electric vacuum cleaner

87
Assignee: HITACHI LTDPriority: Jun 7, 1991Filed: Aug 12, 1991Granted: Aug 10, 1993
Est. expiryJun 7, 2011(expired)· nominal 20-yr term from priority
Inventors:Akira KojimaShigetaka KimuraHirofumi TanakaAkira Iwao
87
PatentIndex Score
29
Cited by
6
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an electric vacuum cleaner, as shown.

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