IP Library › Granted Patent US 731,565
Granted Patent S1
US 731,565 · App. 29/472,639 · Granted Jun 9, 2015

Stepped hammer for shredding machines

Inventors: Michael R. Weeks (Portland, OR); David M. Graf (Scappoose, OR); Christopher M. Carpenter (Tualatin, OR)
Assignee: ESCO Corporation
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Quick Facts
Patent No.
US 731,565
App. No.
29/472,639
Granted
Jun 9, 2015
Kind
S1
Claims (1)

The ornamental design for a stepped hammer for shredding machines, as shown and described.

Assignments (4)
MERGER AND CHANGE OF NAME Recorded Aug 17, 2018
From: ESCO CORPORATION; ESCO GROUP LLC
To: ESCO GROUP LLC
Reel/Frame 046848/0493 →
RELEASE OF SECURITY INTEREST Recorded Jul 16, 2018
From: BANK OF AMERICA, N.A.
To: ESCO CORPORATION
Reel/Frame 046356/0064 →
NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS Recorded Jul 6, 2016
From: ESCO CORPORATION
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 039267/0771 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 25, 2013
From: WEEKS, MICHAEL R; GRAF, DAVID M; CARPENTER, CHRISTOPHER M
To: ESCO CORPORATION
Reel/Frame 031671/0464 →