IP Library › Granted Patent US 592,028
Granted Patent S1
US 592,028 · App. 29/324,490 · Granted May 12, 2009

Portable electric hammer drill

Assignee: Hitachi Koki Co., Ltd.
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Quick Facts
Patent No.
US 592,028
App. No.
29/324,490
Granted
May 12, 2009
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 Sep 12, 2008
From: TANIGUCHI, TAKESHI; TSUZUKI, HITOSHI; KAWAHARA, TOMOYUKI; KAKEFUDA, SHINICHI; KIKUCHI, ATSUYUKI; YAMAZAKI, SHINGO
To: HITACHI KOKI CO., LTD.
Reel/Frame 021524/0741 →
Priority Claims (1)
JP 2008-006384 · Mar 14, 2008 · national