IP Library › Granted Patent US 719,428
Granted Patent S1
US 719,428 · App. 29/457,866 · Granted Dec 16, 2014

Portable electric hammer drill

Inventors: Yoshiki Aoki (Ibaraki, JP); Masanori Okada (Ibaraki, JP); Hideki Yamada (Ibaraki, JP)
Assignee: Hitachi Koki Co., Ltd.
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Quick Facts
Patent No.
US 719,428
App. No.
29/457,866
Granted
Dec 16, 2014
Kind
S1
Claims (1)

The ornamental design for a portable electric hammer drill, as shown and described.

Assignments (2)
CHANGE OF NAME Recorded Jul 26, 2018
From: HITACHI KOKI KABUSHIKI KAISHA
To: KOKI HOLDINGS CO., LTD.
Reel/Frame 047270/0107 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 17, 2013
From: AOKI, YOSHIKI; OKADA, MASANORI; YAMADA, HIDEKI
To: HITACHI KOKI CO., LTD.
Reel/Frame 030625/0338 →
Priority Claims (1)
JP 2012-030452 · Dec 13, 2012 · national